Updated 4 h ago

Vulnerability database

Every flaw the U.S. government’s cybersecurity agency (CISA) has confirmed attackers are using, plus the new WordPress plugin and theme bugs published each day, sorted by what they mean for a small business. We refresh it twice a day. If you see something your website or office runs, tell us.

1,766exploited flaws on CISA’s list

35added in the last 30 days

575new WordPress flaws this week

391,358entries in the database

1,750 results · page 33 of 35

Nov 3, 2021Google Chromium V8 Type Confusion VulnerabilityCVE-2021-21224 · Computers, phones & browsers · Google · reported by chrome-cve-admin@google.comExploitedHigh 8.8
Google Chromium V8 Engine contains a type confusion vulnerability that allows a remote attacker to execute code inside a sandbox via a crafted HTML page. This vulnerability could affect multiple web browsers that utilize Chromium, including, but not limited to, Google Chrome, Microsoft Edge, and Opera.
Product
Chromium V8
On CISA’s list since
Nov 3, 2021 (federal fix deadline Nov 17, 2021)
What to do
Attackers are using this now. Install Google’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog chromereleases.googleblog.com crbug.com
Nov 3, 2021Google Chromium Blink Use-After-Free VulnerabilityCVE-2021-21193 · Computers, phones & browsers · Google · reported by chrome-cve-admin@google.comExploitedHigh 8.8
Google Chromium Blink contains a use-after-free vulnerability that allows a remote attacker to potentially exploit heap corruption via a crafted HTML page. This vulnerability could affect multiple web browsers that utilize Chromium, including, but not limited to, Google Chrome, Microsoft Edge, and Opera.
Product
Chromium Blink
On CISA’s list since
Nov 3, 2021 (federal fix deadline Nov 17, 2021)
What to do
Attackers are using this now. Install Google’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog chromereleases.googleblog.com crbug.com
Nov 3, 2021Google Chromium V8 Improper Input Validation VulnerabilityCVE-2021-21220 · Computers, phones & browsers · Google · reported by chrome-cve-admin@google.comExploitedHigh 8.8
Google Chromium V8 Engine contains an improper input validation vulnerability that allows a remote attacker to potentially exploit heap corruption via a crafted HTML page. This vulnerability could affect multiple web browsers that utilize Chromium, including, but not limited to, Google Chrome, Microsoft Edge, and Opera.
Product
Chromium V8
On CISA’s list since
Nov 3, 2021 (federal fix deadline Nov 17, 2021)
What to do
Attackers are using this now. Install Google’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog packetstormsecurity.com packetstormsecurity.com
Nov 3, 2021Google Chromium V8 Type Confusion VulnerabilityCVE-2021-30563 · Computers, phones & browsers · Google · reported by chrome-cve-admin@google.comExploitedHigh 8.8
Google Chromium V8 Engine contains a type confusion vulnerability that allows a remote attacker to potentially exploit heap corruption via a crafted HTML page. This vulnerability could affect multiple web browsers that utilize Chromium, including, but not limited to, Google Chrome, Microsoft Edge, and Opera.
Product
Chromium V8
On CISA’s list since
Nov 3, 2021 (federal fix deadline Nov 17, 2021)
What to do
Attackers are using this now. Install Google’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog chromereleases.googleblog.com crbug.com
Nov 3, 2021IBM Data Risk Manager Directory Traversal VulnerabilityCVE-2020-4430 · Other software · IBM · reported by psirt@us.ibm.comExploitedMedium 4.3
IBM Data Risk Manager contains a directory traversal vulnerability that could allow a remote authenticated attacker to traverse directories and send a specially crafted URL request to download arbitrary files from the system.
Product
Data Risk Manager
On CISA’s list since
Nov 3, 2021 (federal fix deadline May 3, 2022)
What to do
Attackers are using this now. Install IBM’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog exchange.xforce.ibmcloud.com ibm.com
Nov 3, 2021IBM Data Risk Manager Security Bypass VulnerabilityCVE-2020-4427 · Other software · IBM · reported by psirt@us.ibm.comExploitedCritical 9.8
IBM Data Risk Manager contains a security bypass vulnerability that could allow a remote attacker to bypass security restrictions when configured with SAML authentication. By sending a specially crafted HTTP request, an attacker could exploit this vulnerability to bypass the authentication process and gain full administrative access to the system.
Product
Data Risk Manager
On CISA’s list since
Nov 3, 2021 (federal fix deadline May 3, 2022)
What to do
Attackers are using this now. Install IBM’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog exchange.xforce.ibmcloud.com ibm.com
Nov 3, 2021IBM Data Risk Manager Remote Code Execution VulnerabilityCVE-2020-4428 · Other software · IBM · reported by psirt@us.ibm.comExploitedCritical 9.1
IBM Data Risk Manager contains an unspecified vulnerability which could allow a remote, authenticated attacker to execute commands on the system.�
Product
Data Risk Manager
On CISA’s list since
Nov 3, 2021 (federal fix deadline May 3, 2022)
What to do
Attackers are using this now. Install IBM’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog exchange.xforce.ibmcloud.com ibm.com
Nov 3, 2021IBM Planning Analytics Remote Code Execution VulnerabilityCVE-2019-4716 · Other software · IBM · reported by psirt@us.ibm.comExploitedCritical 9.8
IBM Planning Analytics is vulnerable to a configuration overwrite that allows an unauthenticated user to login as "admin", and then execute code as root or SYSTEM via TM1 scripting.
Product
Planning Analytics
On CISA’s list since
Nov 3, 2021 (federal fix deadline May 3, 2022)
What to do
Attackers are using this now. Install IBM’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog packetstormsecurity.com seclists.org
Nov 3, 2021ImageMagick Arbitrary File Deletion VulnerabilityCVE-2016-3715 · Other software · ImageMagick · reported by Red HatExploitedMedium 5.5
ImageMagick contains an unspecified vulnerability that could allow users to delete files by using ImageMagick's 'ephemeral' pseudo protocol, which deletes files after reading.
Product
ImageMagick
On CISA’s list since
Nov 3, 2021 (federal fix deadline May 3, 2022)
What to do
Attackers are using this now. Install ImageMagick’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog git.imagemagick.org lists.opensuse.org
Nov 3, 2021ImageMagick Server-Side Request Forgery (SSRF) VulnerabilityCVE-2016-3718 · Other software · ImageMagick · reported by Red HatExploitedMedium 5.5
ImageMagick contains an unspecified vulnerability that allows attackers to perform server-side request forgery (SSRF) via a crafted image.
Product
ImageMagick
On CISA’s list since
Nov 3, 2021 (federal fix deadline May 3, 2022)
What to do
Attackers are using this now. Install ImageMagick’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog git.imagemagick.org lists.opensuse.org
Nov 3, 2021Ivanti MobileIron Multiple Products Remote Code Execution VulnerabilityCVE-2020-15505 · Network & remote access · Ivanti · reported by MITREExploitedCritical 9.8
Ivanti MobileIron's Core & Connector, Sentry, and Monitor and Reporting Database (RDB) products contain an unspecified vulnerability that allows for remote code execution.
Product
MobileIron Multiple Products
On CISA’s list since
Nov 3, 2021 (federal fix deadline May 3, 2022)
What to do
Attackers are using this now. Install Ivanti’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog packetstormsecurity.com cwe.mitre.org
Nov 3, 2021Kaseya Virtual System/Server Administrator (VSA) Information Disclosure VulnerabilityCVE-2021-30116 · Other software · Kaseya · reported by MITREExploitedRansomwareCritical 10
Kaseya Virtual System/Server Administrator (VSA) contains an information disclosure vulnerability allowing an attacker to obtain the sessionId that can be used to execute further attacks against the system.
Product
Virtual System/Server Administrator (VSA)
On CISA’s list since
Nov 3, 2021 (federal fix deadline Nov 17, 2021)
What to do
Attackers are using this now. Install Kaseya’s update today (ransomware groups use this one). If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog csirt.divd.nl csirt.divd.nl
Nov 3, 2021Liferay Portal Deserialization of Untrusted Data VulnerabilityCVE-2020-7961 · Other software · Liferay · reported by MITREExploitedCritical 9.8
Liferay Portal contains a deserialization of untrusted data vulnerability that allows remote attackers to execute code via JSON web services.
Product
Liferay Portal
On CISA’s list since
Nov 3, 2021 (federal fix deadline May 3, 2022)
What to do
Attackers are using this now. Install Liferay’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog packetstormsecurity.com packetstormsecurity.com
Nov 3, 2021McAfee Total Protection (MTP) Improper Privilege Management VulnerabilityCVE-2021-23874 · Other software · McAfee · reported by trellixpsirt@trellix.comExploitedHigh 8.2
McAfee Total Protection (MTP) contains an improper privilege management vulnerability that allows a local user to gain elevated privileges and execute code, bypassing MTP self-defense.
Product
McAfee Total Protection (MTP)
On CISA’s list since
Nov 3, 2021 (federal fix deadline Nov 17, 2021)
What to do
Attackers are using this now. Install McAfee’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog service.mcafee.com service.mcafee.com
Nov 3, 2021Micro Focus Access Manager Information Leakage VulnerabilityCVE-2021-22506 · Other software · Micro Focus · reported by security@opentext.comExploitedHigh 7.5
Micro Focus Access Manager contains an information leakage vulnerability resulting from a SAML service provider redirection issue when the Assertion Consumer Service URL is used.
Product
Micro Focus Access Manager
On CISA’s list since
Nov 3, 2021 (federal fix deadline Nov 17, 2021)
What to do
Attackers are using this now. Install Micro Focus’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog microfocus.com microfocus.com
Nov 3, 2021Micro Focus Operation Bridge Report (OBR) Remote Code Execution VulnerabilityCVE-2021-22502 · Other software · Micro Focus · reported by security@opentext.comExploitedCritical 9.8
Micro Focus Operation Bridge Report (OBR) contains an unspecified vulnerability that allows for remote code execution.
Product
Operation Bridge Reporter (OBR)
On CISA’s list since
Nov 3, 2021 (federal fix deadline Nov 17, 2021)
What to do
Attackers are using this now. Install Micro Focus’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog packetstormsecurity.com softwaresupport.softwaregrp.com
Nov 3, 2021Microsoft Windows Kernel Privilege Escalation VulnerabilityCVE-2020-0986 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comExploitedHigh 7.8
Microsoft Windows kernel contains an unspecified vulnerability when handling objects in memory that allows attackers to escalate privileges and execute code in kernel mode.
Product
Windows
On CISA’s list since
Nov 3, 2021 (federal fix deadline May 3, 2022)
What to do
Attackers are using this now. Install Microsoft’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog packetstormsecurity.com portal.msrc.microsoft.com
Nov 3, 2021Microsoft Windows Group Policy Preferences Password Privilege Escalation VulnerabilityCVE-2014-1812 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comExploitedRansomwareHigh 8.8
Microsoft Windows Active Directory contains a privilege escalation vulnerability due to the way it distributes passwords that are configured using Group Policy preferences. An authenticated attacker who successfully exploits the vulnerability could decrypt the passwords and use them to elevate privileges on the domain.
Product
Windows
On CISA’s list since
Nov 3, 2021 (federal fix deadline May 3, 2022)
What to do
Attackers are using this now. Install Microsoft’s update today (ransomware groups use this one). If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog blogs.technet.com docs.microsoft.com
Nov 3, 2021Microsoft Open Management Infrastructure (OMI) Remote Code Execution VulnerabilityCVE-2021-38647 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comExploitedRansomwareCritical 9.8
Microsoft Open Management Infrastructure (OMI) within Azure VM Management Extensions contains an unspecified vulnerability allowing remote code execution.
Product
Open Management Infrastructure (OMI)
On CISA’s list since
Nov 3, 2021 (federal fix deadline Nov 17, 2021)
What to do
Attackers are using this now. Install Microsoft’s update today (ransomware groups use this one). If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog msrc.microsoft.com packetstormsecurity.com
Nov 3, 2021Microsoft Win32k Privilege Escalation VulnerabilityCVE-2016-0167 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comExploitedRansomwareHigh 7.8
Microsoft Win32k contains an unspecified vulnerability that allows for privilege escalation via a crafted application
Product
Win32k
On CISA’s list since
Nov 3, 2021 (federal fix deadline May 3, 2022)
What to do
Attackers are using this now. Install Microsoft’s update today (ransomware groups use this one). If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog securitytracker.com securitytracker.com
Nov 3, 2021Microsoft Edge and Internet Explorer Memory Corruption VulnerabilityCVE-2020-0878 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comExploitedRansomwareMedium 4.2
Microsoft Edge and Internet Explorer contain a memory corruption vulnerability that allows attackers to execute code in the context of the current user.
Product
Edge and Internet Explorer
On CISA’s list since
Nov 3, 2021 (federal fix deadline May 3, 2022)
What to do
Attackers are using this now. Install Microsoft’s update today (ransomware groups use this one). If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog portal.msrc.microsoft.com portal.msrc.microsoft.com
Nov 3, 2021Microsoft Windows Kernel Information Disclosure VulnerabilityCVE-2021-31955 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comExploitedMedium 5.5
Microsoft Windows Kernel contains an unspecified vulnerability that allows for information disclosure. Successful exploitation allows attackers to read the contents of kernel memory from a user-mode process.
Product
Windows
On CISA’s list since
Nov 3, 2021 (federal fix deadline Nov 17, 2021)
What to do
Attackers are using this now. Install Microsoft’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog portal.msrc.microsoft.com portal.msrc.microsoft.com
Nov 3, 2021Microsoft Windows Media Center Remote Code Execution VulnerabilityCVE-2016-0185 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comExploitedHigh 7.8
Microsoft Windows Media Center contains a remote code execution vulnerability when Windows Media Center opens a specially crafted Media Center link (.mcl) file that references malicious code.
Product
Windows
On CISA’s list since
Nov 3, 2021 (federal fix deadline May 3, 2022)
What to do
Attackers are using this now. Install Microsoft’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog securityfocus.com securitytracker.com
Nov 3, 2021Microsoft Windows Installer Privilege Escalation VulnerabilityCVE-2020-0683 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comExploitedHigh 7.8
Microsoft Windows Installer contains a privilege escalation vulnerability when MSI packages process symbolic links, which allows attackers to bypass access restrictions to add or remove files.
Product
Windows
On CISA’s list since
Nov 3, 2021 (federal fix deadline May 3, 2022)
What to do
Attackers are using this now. Install Microsoft’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog portal.msrc.microsoft.com portal.msrc.microsoft.com
Nov 3, 2021Microsoft Windows Kernel Privilege Escalation VulnerabilityCVE-2020-17087 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comExploitedHigh 7.8
Microsoft Windows kernel contains an unspecified vulnerability that allows for privilege escalation.
Product
Windows
On CISA’s list since
Nov 3, 2021 (federal fix deadline May 3, 2022)
What to do
Attackers are using this now. Install Microsoft’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog portal.msrc.microsoft.com portal.msrc.microsoft.com
Nov 3, 2021Microsoft Enhanced Cryptographic Provider Privilege Escalation VulnerabilityCVE-2021-31199 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comExploitedMedium 5.2
Microsoft Enhanced Cryptographic Provider contains an unspecified vulnerability that allows for privilege escalation.
Product
Enhanced Cryptographic Provider
On CISA’s list since
Nov 3, 2021 (federal fix deadline Nov 17, 2021)
What to do
Attackers are using this now. Install Microsoft’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog portal.msrc.microsoft.com portal.msrc.microsoft.com
Nov 3, 2021Microsoft Windows NTFS Privilege Escalation VulnerabilityCVE-2021-31956 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comExploitedHigh 7.8
Microsoft Windows New Technology File System (NTFS) contains an unspecified vulnerability that allows attackers to escalate privileges via a specially crafted application.
Product
Windows
On CISA’s list since
Nov 3, 2021 (federal fix deadline Nov 17, 2021)
What to do
Attackers are using this now. Install Microsoft’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog portal.msrc.microsoft.com portal.msrc.microsoft.com
Nov 3, 2021Microsoft Windows Server Buffer Overflow VulnerabilityCVE-2017-7269 · Websites & servers · Microsoft · reported by MITREExploitedCritical 9.8
Microsoft Windows Server 2003 R2 contains a buffer overflow vulnerability in Internet Information Services (IIS) 6.0 which allows remote attackers to execute code via a long header beginning with "If: <http://" in a PROPFIND request.
Product
Internet Information Services (IIS)
On CISA’s list since
Nov 3, 2021 (federal fix deadline May 3, 2022)
What to do
Attackers are using this now. Install Microsoft’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog securityfocus.com securitytracker.com
Nov 3, 2021Microsoft Windows Update Medic Service Privilege Escalation VulnerabilityCVE-2021-36948 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comExploitedHigh 7.8
Microsoft Windows Update Medic Service contains an unspecified vulnerability that allows for privilege escalation.
Product
Windows
On CISA’s list since
Nov 3, 2021 (federal fix deadline Nov 17, 2021)
What to do
Attackers are using this now. Install Microsoft’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog msrc.microsoft.com portal.msrc.microsoft.com
Nov 3, 2021Microsoft Open Management Infrastructure (OMI) Privilege Escalation VulnerabilityCVE-2021-38649 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comExploitedHigh 7
Microsoft Open Management Infrastructure (OMI) within Azure VM Management Extensions contains an unspecified vulnerability allowing privilege escalation.
Product
Open Management Infrastructure (OMI)
On CISA’s list since
Nov 3, 2021 (federal fix deadline Nov 17, 2021)
What to do
Attackers are using this now. Install Microsoft’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog msrc.microsoft.com portal.msrc.microsoft.com
Nov 3, 2021Microsoft Exchange Server Validation Key Remote Code Execution VulnerabilityCVE-2020-0688 · Email & office · Microsoft · reported by secure@microsoft.comExploitedRansomwareHigh 8.8
Microsoft Exchange Server Validation Key fails to properly create unique keys at install time, allowing for remote code execution.
Product
Exchange Server
On CISA’s list since
Nov 3, 2021 (federal fix deadline May 3, 2022)
What to do
Attackers are using this now. Install Microsoft’s update today (ransomware groups use this one). If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog packetstormsecurity.com packetstormsecurity.com
Nov 3, 2021Microsoft Windows Server Message Block (SMBv1) Remote Code Execution VulnerabilityCVE-2017-0143 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comExploitedRansomwareHigh 8.8
Microsoft Windows Server Message Block 1.0 (SMBv1) contains an unspecified vulnerability that allows for remote code execution.
Product
Windows
On CISA’s list since
Nov 3, 2021 (federal fix deadline May 3, 2022)
What to do
Attackers are using this now. Install Microsoft’s update today (ransomware groups use this one). If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog packetstormsecurity.com packetstormsecurity.com
Nov 3, 2021Microsoft Win32k Privilege Escalation VulnerabilityCVE-2016-7255 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comExploitedRansomwareHigh 7.8
Microsoft Win32k kernel-mode driver fails to properly handle objects in memory which allows for privilege escalation. Successful exploitation allows an attacker to run code in kernel mode.
Product
Win32k
On CISA’s list since
Nov 3, 2021 (federal fix deadline May 3, 2022)
What to do
Attackers are using this now. Install Microsoft’s update today (ransomware groups use this one). If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog blog.trendmicro.com packetstormsecurity.com
Nov 3, 2021Microsoft Remote Desktop Services Remote Code Execution VulnerabilityCVE-2019-0708 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comExploitedRansomwareCritical 9.8
Microsoft Remote Desktop Services, formerly known as Terminal Service, contains an unspecified vulnerability that allows an unauthenticated attacker to connect to the target system using RDP and send specially crafted requests. Successful exploitation allows for remote code execution. The vulnerability is also known under the moniker of BlueKeep.
Product
Remote Desktop Services
On CISA’s list since
Nov 3, 2021 (federal fix deadline May 3, 2022)
What to do
Attackers are using this now. Install Microsoft’s update today (ransomware groups use this one). If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog packetstormsecurity.com packetstormsecurity.com
Nov 3, 2021Microsoft Exchange Server Remote Code Execution VulnerabilityCVE-2021-34473 · Email & office · Microsoft · reported by secure@microsoft.comExploitedRansomwareCritical 9.1
Microsoft Exchange Server contains an unspecified vulnerability that allows for remote code execution.
Product
Exchange Server
On CISA’s list since
Nov 3, 2021 (federal fix deadline Nov 17, 2021)
What to do
Attackers are using this now. Install Microsoft’s update today (ransomware groups use this one). If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog msrc.microsoft.com packetstormsecurity.com
Nov 3, 2021Microsoft Windows Spoofing VulnerabilityCVE-2020-1464 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comExploitedHigh 7.8
Microsoft Windows contains a spoofing vulnerability when Windows incorrectly validates file signatures, allowing an attacker to bypass security features and load improperly signed files.
Product
Windows
On CISA’s list since
Nov 3, 2021 (federal fix deadline May 3, 2022)
What to do
Attackers are using this now. Install Microsoft’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog blog.virustotal.com krebsonsecurity.com
Nov 3, 2021Microsoft Windows Print Spooler Remote Code Execution VulnerabilityCVE-2021-34527 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comExploitedRansomwareHigh 8.8
Microsoft Windows Print Spooler contains an unspecified vulnerability due to the Windows Print Spooler service improperly performing privileged file operations. Successful exploitation allows an attacker to perform remote code execution with SYSTEM privileges. The vulnerability is also known under the moniker of PrintNightmare.
Product
Windows
On CISA’s list since
Nov 3, 2021 (federal fix deadline May 3, 2022)
What to do
Attackers are using this now. Install Microsoft’s update today (ransomware groups use this one). If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog msrc.microsoft.com packetstormsecurity.com
Nov 3, 2021Microsoft Exchange Server Security Feature Bypass VulnerabilityCVE-2021-31207 · Email & office · Microsoft · reported by secure@microsoft.comExploitedRansomwareMedium 6.6
Microsoft Exchange Server contains an unspecified vulnerability that allows for security feature bypass.
Product
Exchange Server
On CISA’s list since
Nov 3, 2021 (federal fix deadline Nov 17, 2021)
What to do
Attackers are using this now. Install Microsoft’s update today (ransomware groups use this one). If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog packetstormsecurity.com portal.msrc.microsoft.com
Nov 3, 2021Microsoft Win32k Privilege Escalation VulnerabilityCVE-2019-0803 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comExploitedRansomwareHigh 7.8
Microsoft Win32k contains an unspecified vulnerability due to it failing to properly handle objects in memory causing privilege escalation. Successful exploitation allows an attacker to run code in kernel mode.
Product
Win32k
On CISA’s list since
Nov 3, 2021 (federal fix deadline May 3, 2022)
What to do
Attackers are using this now. Install Microsoft’s update today (ransomware groups use this one). If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog packetstormsecurity.com portal.msrc.microsoft.com
Nov 3, 2021Microsoft Hyper-V RemoteFX vGPU Remote Code Execution VulnerabilityCVE-2020-1040 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comExploitedCritical 9
Microsoft Hyper-V RemoteFX vGPU contains an improper input validation vulnerability due to the host server failing to properly validate input from an authenticated user on a guest operating system. Successful exploitation allows for remote code execution on the host operating system.
Product
Hyper-V RemoteFX
On CISA’s list since
Nov 3, 2021 (federal fix deadline May 3, 2022)
What to do
Attackers are using this now. Install Microsoft’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog nvidia.custhelp.com portal.msrc.microsoft.com
Nov 3, 2021Microsoft Win32k Privilege Escalation VulnerabilityCVE-2021-28310 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comExploitedHigh 7.8
Microsoft Windows Win32k contains an unspecified vulnerability that allows for privilege escalation.
Product
Win32k
On CISA’s list since
Nov 3, 2021 (federal fix deadline Nov 17, 2021)
What to do
Attackers are using this now. Install Microsoft’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog portal.msrc.microsoft.com portal.msrc.microsoft.com
Nov 3, 2021Microsoft Windows DNS Server Remote Code Execution VulnerabilityCVE-2020-1350 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comExploitedCritical 10
Microsoft Windows DNS Servers fail to properly handle requests, allowing an attacker to perform remote code execution in the context of the Local System Account. The vulnerability is also known under the moniker of SIGRed.
Product
Windows
On CISA’s list since
Nov 3, 2021 (federal fix deadline May 3, 2022)
What to do
Attackers are using this now. Install Microsoft’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog packetstormsecurity.com portal.msrc.microsoft.com
Nov 3, 2021Microsoft Internet Explorer Memory Corruption VulnerabilityCVE-2021-26411 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comExploitedRansomwareHigh 8.8
Microsoft Internet Explorer contains an unspecified vulnerability that allows for memory corruption.
Product
Internet Explorer
On CISA’s list since
Nov 3, 2021 (federal fix deadline Nov 17, 2021)
What to do
Attackers are using this now. Install Microsoft’s update today (ransomware groups use this one). If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog msrc.microsoft.com portal.msrc.microsoft.com
Nov 3, 2021Microsoft MSHTML Remote Code Execution VulnerabilityCVE-2021-40444 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comExploitedRansomwareHigh 8.8
Microsoft MSHTML contains a unspecified vulnerability that allows for remote code execution.
Product
MSHTML
On CISA’s list since
Nov 3, 2021 (federal fix deadline Nov 17, 2021)
What to do
Attackers are using this now. Install Microsoft’s update today (ransomware groups use this one). If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog msrc.microsoft.com packetstormsecurity.com
Nov 3, 2021Microsoft .NET Framework Remote Code Execution VulnerabilityCVE-2017-8759 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comExploitedHigh 7.8
Microsoft .NET Framework contains a remote code execution vulnerability when processing untrusted input that could allow an attacker to take control of an affected system.
Product
.NET Framework
On CISA’s list since
Nov 3, 2021 (federal fix deadline May 3, 2022)
What to do
Attackers are using this now. Install Microsoft’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog securityfocus.com securitytracker.com
Nov 3, 2021Microsoft Internet Explorer Scripting Engine Memory Corruption VulnerabilityCVE-2018-8653 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comExploitedHigh 7.5
Microsoft Internet Explorer contains a memory corruption vulnerability due to how the Scripting Engine handles objects in memory, leading to remote code execution.
Product
Internet Explorer
On CISA’s list since
Nov 3, 2021 (federal fix deadline May 3, 2022)
What to do
Attackers are using this now. Install Microsoft’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog securityfocus.com portal.msrc.microsoft.com
Nov 3, 2021Microsoft Win32k Privilege Escalation VulnerabilityCVE-2019-0797 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comExploitedHigh 7.8
Microsoft Win32k contains a privilege escalation vulnerability when the Win32k component fails to properly handle objects in memory. Successful exploitation allows an attacker to execute code in kernel mode.
Product
Win32k
On CISA’s list since
Nov 3, 2021 (federal fix deadline May 3, 2022)
What to do
Attackers are using this now. Install Microsoft’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog portal.msrc.microsoft.com portal.msrc.microsoft.com
Nov 3, 2021Microsoft Windows Local Security Authority (LSA) Spoofing VulnerabilityCVE-2021-36942 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comExploitedRansomwareHigh 7.5
Microsoft Windows Local Security Authority (LSA) contains a spoofing vulnerability allowing an unauthenticated attacker to call a method on the LSARPC interface and coerce the domain controller to authenticate against another server using NTLM.
Product
Windows
On CISA’s list since
Nov 3, 2021 (federal fix deadline Nov 17, 2021)
What to do
Attackers are using this now. Install Microsoft’s update today (ransomware groups use this one). If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog msrc.microsoft.com portal.msrc.microsoft.com
Nov 3, 2021Microsoft Windows Privilege Escalation VulnerabilityCVE-2019-1215 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comExploitedRansomwareHigh 7.8
Microsoft Windows contains an unspecified vulnerability due to the way ws2ifsl.sys (Winsock) handles objects in memory, allowing for privilege escalation. Successful exploitation allows an attacker to execute code with elevated privileges.
Product
Windows
On CISA’s list since
Nov 3, 2021 (federal fix deadline May 3, 2022)
What to do
Attackers are using this now. Install Microsoft’s update today (ransomware groups use this one). If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog portal.msrc.microsoft.com portal.msrc.microsoft.com
Nov 3, 2021Microsoft Office Memory Corruption VulnerabilityCVE-2018-0798 · Email & office · Microsoft · reported by secure@microsoft.comExploitedHigh 8.8
Microsoft Office contains a memory corruption vulnerability due to the way objects are handled in memory. Successful exploitation allows for remote code execution in the context of the current user. This vulnerability is known to be chained with CVE-2018-0802.
Product
Office
On CISA’s list since
Nov 3, 2021 (federal fix deadline May 3, 2022)
What to do
Attackers are using this now. Install Microsoft’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog securityfocus.com securitytracker.com

Where this comes from: the exploited list is CISA’s Known Exploited Vulnerabilities catalog. Everything else is the whole National Vulnerability Database, where each record is published by the team that found the bug (Wordfence, Patchstack, WPScan, the vendors themselves and others); we show who. Exploit odds are FIRST’s EPSS, updated daily. Titles and categories are ours, so check the linked record before acting on a detail. For a write-up of the big ones, see our advisories. Every vendor, and every WordPress plugin and theme with a recorded flaw, also has its own page. All of it is free to reuse as JSON, CSV or RSS.

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