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.
6,370 results · page 12 of 128
Oct 13, 2026Buffer over-read in Windows IKE Extension allows an authorized attacker to deny service over a network.CVE-2026-83685 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 6.5
Buffer over-read in Windows IKE Extension allows an authorized attacker to deny service over a network.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Absolute path traversal in Windows Encrypting File System (EFS) allows an authorized attacker to disclose information over a network.CVE-2026-83683 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 6.5
Absolute path traversal in Windows Encrypting File System (EFS) allows an authorized attacker to disclose information over a network.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Use after free in Windows TCP/IP allows an authorized attacker to elevate privileges locally.CVE-2026-83682 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7
Use after free in Windows TCP/IP allows an authorized attacker to elevate privileges locally.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Heap-based buffer overflow in Windows Installer allows an authorized attacker to elevate privileges locally.CVE-2026-83680 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7
Heap-based buffer overflow in Windows Installer allows an authorized attacker to elevate privileges locally.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Heap-based buffer overflow in Windows TCP/IP allows an authorized attacker to elevate privileges locally.CVE-2026-83678 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Heap-based buffer overflow in Windows TCP/IP allows an authorized attacker to elevate privileges locally.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Integer underflow (wrap or wraparound) in Windows Installer allows an authorized attacker to elevate privileges locally.CVE-2026-83676 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7
Integer underflow (wrap or wraparound) in Windows Installer allows an authorized attacker to elevate privileges locally.
- Product
- Windows 10 Version 21H2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Weak authentication in Active Directory Federation Services (AD FS) allows an unauthorized attacker to perform spoofing over a network.CVE-2026-83674 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.1
Weak authentication in Active Directory Federation Services (AD FS) allows an unauthorized attacker to perform spoofing over a network.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Exposure of sensitive system information to an unauthorized control sphere in Windows Installer allows an authorized attacker to disclose information locally.CVE-2026-83672 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 4.7
Exposure of sensitive system information to an unauthorized control sphere in Windows Installer allows an authorized attacker to disclose information locally.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Out-of-bounds read in Windows Hyper-V allows an authorized attacker to disclose information locally.CVE-2026-83671 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 6.5
Out-of-bounds read in Windows Hyper-V allows an authorized attacker to disclose information locally.
- Product
- Windows 10 Version 1809
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Out-of-bounds read in Function Discovery Service (fdwsd.dll) allows an unauthorized attacker to disclose information over a network.CVE-2026-83670 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.5
Out-of-bounds read in Function Discovery Service (fdwsd.dll) allows an unauthorized attacker to disclose information over a network.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Use of uninitialized resource in Windows Error Reporting allows an authorized attacker to elevate privileges locally.CVE-2026-83669 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Use of uninitialized resource in Windows Error Reporting allows an authorized attacker to elevate privileges locally.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Out-of-bounds read in Windows WLAN Service allows an authorized attacker to disclose information locally.CVE-2026-83668 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 5.5
Out-of-bounds read in Windows WLAN Service allows an authorized attacker to disclose information locally.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Out-of-bounds read in Active Directory Domain Services allows an authorized attacker to deny service over a network.CVE-2026-83667 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 6.5
Out-of-bounds read in Active Directory Domain Services allows an authorized attacker to deny service over a network.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Concurrent execution using shared resource with improper synchronization ('race condition') in Active Directory Certificate Services (AD CS) allows an authorizeCVE-2026-83666 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7
Concurrent execution using shared resource with improper synchronization ('race condition') in Active Directory Certificate Services (AD CS) allows an authorized attacker to elevate privileges locally.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Null pointer dereference in Windows DHCP Server allows an unauthorized attacker to deny service over a network.CVE-2026-83665 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.5
Null pointer dereference in Windows DHCP Server allows an unauthorized attacker to deny service over a network.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Access of resource using incompatible type ('type confusion') in Windows Portable Device File System Driver allows an authorized attacker to disclose informatioCVE-2026-83664 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 5.5
Access of resource using incompatible type ('type confusion') in Windows Portable Device File System Driver allows an authorized attacker to disclose information locally.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Improper link resolution before file access ('link following') in Windows User Profile Service allows an authorized attacker to elevate privileges locally.CVE-2026-83659 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Improper link resolution before file access ('link following') in Windows User Profile Service allows an authorized attacker to elevate privileges locally.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Improper access control in Windows Error Reporting allows an authorized attacker to disclose information locally.CVE-2026-83658 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 5.5
Improper access control in Windows Error Reporting allows an authorized attacker to disclose information locally.
- Product
- Windows 10 Version 1809
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Weak authentication in Windows Modern Device Management (MDM) allows an authorized attacker to perform tampering locally.CVE-2026-83657 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 5.5
Weak authentication in Windows Modern Device Management (MDM) allows an authorized attacker to perform tampering locally.
- Product
- Windows 10 Version 1809
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Missing authentication for critical function in Windows Modern Device Management (MDM) allows an authorized attacker to perform tampering locally.CVE-2026-83656 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 4.7
Missing authentication for critical function in Windows Modern Device Management (MDM) allows an authorized attacker to perform tampering locally.
- Product
- Windows 10 Version 21H2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Out-of-bounds read in Network Policy Server (NPS) allows an unauthorized attacker to deny service over a network.CVE-2026-83655 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.5
Out-of-bounds read in Network Policy Server (NPS) allows an unauthorized attacker to deny service over a network.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Missing authentication for critical function in Windows Modern Device Management (MDM) allows an authorized attacker to elevate privileges locally.CVE-2026-83654 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Missing authentication for critical function in Windows Modern Device Management (MDM) allows an authorized attacker to elevate privileges locally.
- Product
- Windows 10 Version 21H2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Heap-based buffer overflow in Windows NTFS allows an authorized attacker to elevate privileges locally.CVE-2026-83652 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Heap-based buffer overflow in Windows NTFS allows an authorized attacker to elevate privileges locally.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Out-of-bounds read in Windows GDI allows an unauthorized attacker to disclose information over a network.CVE-2026-83651 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 6.5
Out-of-bounds read in Windows GDI allows an unauthorized attacker to disclose information over a network.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Heap-based buffer overflow in Windows Media allows an authorized attacker to elevate privileges locally.CVE-2026-83650 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Heap-based buffer overflow in Windows Media allows an authorized attacker to elevate privileges locally.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Out-of-bounds read in Windows Local Security Authority Subsystem Service (LSASS) allows an authorized attacker to deny service over a network.CVE-2026-83649 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 6.5
Out-of-bounds read in Windows Local Security Authority Subsystem Service (LSASS) allows an authorized attacker to deny service over a network.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Null pointer dereference in Active Directory Domain Services allows an authorized attacker to deny service over a network.CVE-2026-83648 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 6.5
Null pointer dereference in Active Directory Domain Services allows an authorized attacker to deny service over a network.
- Product
- Windows 10 Version 21H2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Out-of-bounds read in Active Directory Domain Services allows an unauthorized attacker to deny service over a network.CVE-2026-83647 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.5
Out-of-bounds read in Active Directory Domain Services allows an unauthorized attacker to deny service over a network.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Url redirection to untrusted site ('open redirect') in Active Directory Federation Services (AD FS) allows an authorized attacker to perform spoofing over a netCVE-2026-83646 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 4.8
Url redirection to untrusted site ('open redirect') in Active Directory Federation Services (AD FS) allows an authorized attacker to perform spoofing over a network.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Allocation of resources without limits or throttling in Active Directory Federation Services (AD FS) allows an unauthorized attacker to deny service over a netwCVE-2026-83645 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.5
Allocation of resources without limits or throttling in Active Directory Federation Services (AD FS) allows an unauthorized attacker to deny service over a network.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Use after free in Windows Audio Service allows an authorized attacker to elevate privileges locally.CVE-2026-83644 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7
Use after free in Windows Audio Service allows an authorized attacker to elevate privileges locally.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Stack-based buffer overflow in Windows Error Reporting allows an unauthorized attacker to execute code over a network.CVE-2026-83643 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.8
Stack-based buffer overflow in Windows Error Reporting allows an unauthorized attacker to execute code over a network.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Access of resource using incompatible type ('type confusion') in DNS Server allows an unauthorized attacker to execute code over a network.CVE-2026-83642 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.8
Access of resource using incompatible type ('type confusion') in DNS Server allows an unauthorized attacker to execute code over a network.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Heap-based buffer overflow in Windows Media allows an authorized attacker to elevate privileges locally.CVE-2026-83641 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Heap-based buffer overflow in Windows Media allows an authorized attacker to elevate privileges locally.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Heap-based buffer overflow in Windows NTFS allows an authorized attacker to execute code locally.CVE-2026-83640 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Heap-based buffer overflow in Windows NTFS allows an authorized attacker to execute code locally.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Heap-based buffer overflow in Windows Sensor Data Service allows an authorized attacker to elevate privileges locally.CVE-2026-83639 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Heap-based buffer overflow in Windows Sensor Data Service allows an authorized attacker to elevate privileges locally.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Heap-based buffer overflow in Windows USB Driver allows an authorized attacker to elevate privileges locally.CVE-2026-83638 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Heap-based buffer overflow in Windows USB Driver allows an authorized attacker to elevate privileges locally.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Out-of-bounds read in Windows Kernel-Mode Drivers allows an authorized attacker to elevate privileges locally.CVE-2026-83637 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Out-of-bounds read in Windows Kernel-Mode Drivers allows an authorized attacker to elevate privileges locally.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Null pointer dereference in Windows Hyper-V allows an authorized attacker to deny service locally.CVE-2026-83636 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 6.5
Null pointer dereference in Windows Hyper-V allows an authorized attacker to deny service locally.
- Product
- Windows 10 Version 21H2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Heap-based buffer overflow in Windows USB Driver allows an authorized attacker to elevate privileges locally.CVE-2026-83588 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Heap-based buffer overflow in Windows USB Driver allows an authorized attacker to elevate privileges locally.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Untrusted pointer dereference in Windows Core Messaging allows an authorized attacker to elevate privileges locally.CVE-2026-83587 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Untrusted pointer dereference in Windows Core Messaging allows an authorized attacker to elevate privileges locally.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Use of externally-controlled format string in Windows NTFS allows an authorized attacker to elevate privileges locally.CVE-2026-83585 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Use of externally-controlled format string in Windows NTFS allows an authorized attacker to elevate privileges locally.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Use after free in Windows Smart Card allows an authorized attacker to elevate privileges locally.CVE-2026-83584 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7
Use after free in Windows Smart Card allows an authorized attacker to elevate privileges locally.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Improper access control in Windows Geotag Broker allows an authorized attacker to elevate privileges locally.CVE-2026-83583 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Improper access control in Windows Geotag Broker allows an authorized attacker to elevate privileges locally.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Use after free in Windows Graphics Kernel allows an authorized attacker to disclose information locally.CVE-2026-83582 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 4.7
Use after free in Windows Graphics Kernel allows an authorized attacker to disclose information locally.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Heap-based buffer overflow in Windows Client-Side Caching (CSC) Service allows an authorized attacker to elevate privileges locally.CVE-2026-83580 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7
Heap-based buffer overflow in Windows Client-Side Caching (CSC) Service allows an authorized attacker to elevate privileges locally.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Heap-based buffer overflow in Windows Smart Card allows an authorized attacker to elevate privileges locally.CVE-2026-83579 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Heap-based buffer overflow in Windows Smart Card allows an authorized attacker to elevate privileges locally.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Integer underflow (wrap or wraparound) in Windows PowerShell allows an unauthorized attacker to execute code over a network.CVE-2026-83578 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comCritical 9.8
Integer underflow (wrap or wraparound) in Windows PowerShell allows an unauthorized attacker to execute code over a network.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Use after free in Microsoft Windows Search Component allows an authorized attacker to elevate privileges locally.CVE-2026-83575 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7
Use after free in Microsoft Windows Search Component allows an authorized attacker to elevate privileges locally.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Use after free in Microsoft Windows Search Component allows an authorized attacker to elevate privileges locally.CVE-2026-83574 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7
Use after free in Microsoft Windows Search Component allows an authorized attacker to elevate privileges locally.
- Product
- Windows 10 Version 1607
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
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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