Updated 24 min 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.

1,764exploited flaws on CISA’s list

36added in the last 30 days

479new WordPress flaws this week

390,525entries in the database

17 results

Sep 18, 2026Linux Kernel Race Condition VulnerabilityCVE-2025-39964 · Computers, phones & browsers · Linux · reported by 416baaa9-dc9f-4396-8d5f-8c081fb06d67ExploitedHigh 7.8
Linux Kernel contains a race condition vulnerability which allows concurrent writes to the same AF_ALG socket causing data to be unpredictably interleaved and creating inconsistencies in the socket's internal state.
Product
Kernel
On CISA’s list since
Sep 18, 2026 (federal fix deadline Sep 21, 2026)
What to do
Attackers are using this now. Install Linux’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.kernel.org git.kernel.org
Sep 18, 2026Linux Kernel Improper Check for Unusual or Exceptional Conditions VulnerabilityCVE-2025-39682 · Computers, phones & browsers · Linux · reported by 416baaa9-dc9f-4396-8d5f-8c081fb06d67ExploitedCritical 9.8
Linux Kernel contains an improper check for unusual or exceptional conditions vulnerability in the TLS receive path which allows a zero-length record retrieved from the rx_list to bypass the intended recvmsg() record-type handling, potentially causing subsequent TLS records to be processed using incorrect zero-copy and queuing assumptions. The impacted product(s) could be end-of-life (EoL) and/or end-of-service (EoS). Users are advised to discontinue use and/or transition to a supported version.
Product
Kernel
On CISA’s list since
Sep 18, 2026 (federal fix deadline Sep 21, 2026)
What to do
Attackers are using this now. Install Linux’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.kernel.org git.kernel.org
Aug 26, 2026Red Hat Libuser Race Condition VulnerabilityCVE-2015-3246 · Other software · Red Hat · reported by Red HatExploitedHigh 7.4
Red Hat libuser contains a race condition vulnerability that allows authenticated local users to corrupt the /etc/passwd file to cause a denial of service or privilege escalation.
Product
Libuser
On CISA’s list since
Aug 26, 2026 (federal fix deadline Sep 9, 2026)
What to do
Attackers are using this now. Install Red Hat’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 lists.fedoraproject.org lists.fedoraproject.org
Nov 12, 2025Microsoft Windows Race Condition VulnerabilityCVE-2025-62215 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comExploitedHigh 7
Microsoft Windows Kernel contains a race condition vulnerability that allows a local attacker with low-level privileges to escalate privileges. Successful exploitation of this vulnerability could enable the attacker to gain SYSTEM-level access.
Product
Windows
On CISA’s list since
Nov 12, 2025 (federal fix deadline Dec 3, 2025)
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 cisa.gov
Sep 4, 2025Linux Kernel Time-of-Check Time-of-Use (TOCTOU) Race Condition VulnerabilityCVE-2025-38352 · Computers, phones & browsers · Linux · reported by 416baaa9-dc9f-4396-8d5f-8c081fb06d67ExploitedHigh 7.8
Linux kernel contains a time-of-check time-of-use (TOCTOU) race condition vulnerability that has a high impact on confidentiality, integrity, and availability.
Product
Kernel
On CISA’s list since
Sep 4, 2025 (federal fix deadline Sep 25, 2025)
What to do
Attackers are using this now. Install Linux’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.kernel.org git.kernel.org
Mar 4, 2025VMware ESXi and Workstation TOCTOU Race Condition VulnerabilityCVE-2025-22224 · Other software · VMware · reported by security@vmware.comExploitedCritical 9.3
VMware ESXi and Workstation contain a time-of-check time-of-use (TOCTOU) race condition vulnerability that leads to an out-of-bounds write. Successful exploitation enables an attacker with local administrative privileges on a virtual machine to execute code as the virtual machine's VMX process running on the host.
Product
ESXi and Workstation
On CISA’s list since
Mar 4, 2025 (federal fix deadline Mar 25, 2025)
What to do
Attackers are using this now. Install VMware’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 support.broadcom.com cisa.gov
Nov 4, 2024PTZOptics PT30X-SDI/NDI Cameras Authentication Bypass VulnerabilityCVE-2024-8956 · Other software · PTZOptics · reported by VulnCheckExploitedCritical 9.1
PTZOptics PT30X-SDI/NDI cameras contain an insecure direct object reference (IDOR) vulnerability that allows a remote, attacker to bypass authentication for the /cgi-bin/param.cgi CGI script. If combined with CVE-2024-8957, this can lead to remote code execution as root.
Product
PT30X-SDI/NDI Cameras
On CISA’s list since
Nov 4, 2024 (federal fix deadline Nov 25, 2024)
What to do
Attackers are using this now. Install PTZOptics’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 ptzoptics.com vulncheck.com
Nov 4, 2024PTZOptics PT30X-SDI/NDI Cameras OS Command Injection VulnerabilityCVE-2024-8957 · Other software · PTZOptics · reported by VulnCheckExploitedHigh 7.2
PTZOptics PT30X-SDI/NDI cameras contain an OS command injection vulnerability that allows a remote, authenticated attacker to escalate privileges to root via a crafted payload with the ntp_addr parameter of the /cgi-bin/param.cgi CGI script.
Product
PT30X-SDI/NDI Cameras
On CISA’s list since
Nov 4, 2024 (federal fix deadline Nov 25, 2024)
What to do
Attackers are using this now. Install PTZOptics’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 ptzoptics.com vulncheck.com
Oct 15, 2024Microsoft Windows Kernel TOCTOU Race Condition VulnerabilityCVE-2024-30088 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comExploitedRansomwareHigh 7
Microsoft Windows Kernel contains a time-of-check to time-of-use (TOCTOU) race condition vulnerability that could allow for privilege escalation.
Product
Windows
On CISA’s list since
Oct 15, 2024 (federal fix deadline Nov 5, 2024)
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 msrc.microsoft.com
Jun 29, 2023Samsung Mobile Devices Race Condition VulnerabilityCVE-2021-25394 · Computers, phones & browsers · Samsung · reported by mobile.security@samsung.comExploitedMedium 6.4
Samsung mobile devices contain a race condition vulnerability within the MFC charger driver that leads to a use-after-free allowing for a write given a radio privilege is compromised.
Product
Mobile Devices
On CISA’s list since
Jun 29, 2023 (federal fix deadline Jul 20, 2023)
What to do
Attackers are using this now. Install Samsung’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 security.samsungmobile.com security.samsungmobile.com
Jun 29, 2023Samsung Mobile Devices Race Condition VulnerabilityCVE-2021-25395 · Computers, phones & browsers · Samsung · reported by mobile.security@samsung.comExploitedMedium 6.4
Samsung mobile devices contain a race condition vulnerability within the MFC charger driver that leads to a use-after-free allowing for a write given a radio privilege is compromised.
Product
Mobile Devices
On CISA’s list since
Jun 29, 2023 (federal fix deadline Jul 20, 2023)
What to do
Attackers are using this now. Install Samsung’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 security.samsungmobile.com security.samsungmobile.com
May 12, 2023Linux Kernel Race Condition VulnerabilityCVE-2014-0196 · Computers, phones & browsers · Linux · reported by Red HatExploitedMedium 5.5
Linux Kernel contains a race condition vulnerability within the n_tty_write function that allows local users to cause a denial-of-service (DoS) or gain privileges via read and write operations with long strings.
Product
Kernel
On CISA’s list since
May 12, 2023 (federal fix deadline Jun 2, 2023)
What to do
Attackers are using this now. Install Linux’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 bugzilla.novell.com git.kernel.org
May 23, 2022Android Kernel Race Condition VulnerabilityCVE-2021-0920 · Computers, phones & browsers · Android · reported by security@android.comExploitedMedium 6.4
Android kernel contains a race condition, which allows for a use-after-free vulnerability. Exploitation can allow for privilege escalation.
Product
Kernel
On CISA’s list since
May 23, 2022 (federal fix deadline Jun 13, 2022)
What to do
Attackers are using this now. Install Android’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 lists.debian.org source.android.com
Mar 3, 2022Linux Kernel Race Condition VulnerabilityCVE-2016-5195 · Computers, phones & browsers · Linux · reported by chrome-cve-admin@google.comExploitedHigh 7
Race condition in mm/gup.c in the Linux kernel allows local users to escalate privileges.
Product
Kernel
On CISA’s list since
Mar 3, 2022 (federal fix deadline Mar 24, 2022)
What to do
Attackers are using this now. Install Linux’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 fortiguard.com git.kernel.org
Nov 3, 2021Apple Multiple Products Race Condition VulnerabilityCVE-2021-1782 · Computers, phones & browsers · Apple · reported by product-security@apple.comExploitedHigh 7
Apple iOS, iPadOs, macOS, watchOS, and tvOS contain a race condition vulnerability that may allow a malicious application to elevate privileges.
Product
Multiple Products
On CISA’s list since
Nov 3, 2021 (federal fix deadline Nov 17, 2021)
What to do
Attackers are using this now. Install Apple’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 support.apple.com support.apple.com
Nov 3, 2021Google Chromium Race Condition VulnerabilityCVE-2021-21166 · Computers, phones & browsers · Google · reported by chrome-cve-admin@google.comExploitedHigh 8.8
Google Chromium contains a race condition 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
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, 2021Qualcomm Multiple Chipsets Detection of Error Condition Without Action VulnerabilityCVE-2021-1906 · Computers, phones & browsers · Qualcomm · reported by product-security@qualcomm.comExploitedMedium 6.2
Multiple Qualcomm chipsets contain a detection of error condition without action vulnerability when improper handling of address deregistration on failure can lead to new GPU address allocation failure.
Product
Multiple Chipsets
On CISA’s list since
Nov 3, 2021 (federal fix deadline Nov 17, 2021)
What to do
Attackers are using this now. Install Qualcomm’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 qualcomm.com qualcomm.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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Vulnerability database

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