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.
268 results · page 1 of 6
Oct 13, 2026Heap-based buffer overflow in Windows Container Isolation FS Filter Driver (unionfs.sys) allows an authorized attacker to elevate privileges locally.CVE-2026-97810 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7
Heap-based buffer overflow in Windows Container Isolation FS Filter Driver (unionfs.sys) allows an authorized attacker to elevate privileges locally.
- Product
- Windows 11 Version 24H2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Incorrect permission assignment for critical resource in Windows Mobile Broadband allows an authorized attacker to elevate privileges locally.CVE-2026-97800 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Incorrect permission assignment for critical resource in Windows Mobile Broadband allows an authorized attacker to elevate privileges locally.
- Product
- Windows 11 Version 24H2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Improper verification of cryptographic signature in Windows Audio Service allows an authorized attacker to elevate privileges locally.CVE-2026-97799 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Improper verification of cryptographic signature in Windows Audio Service allows an authorized attacker to elevate privileges locally.
- Product
- Windows 11 Version 24H2
- 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 Container Isolation FS Filter Driver (unionfs.sys) allows an authorized attacker to peCVE-2026-97790 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 5.5
Improper link resolution before file access ('link following') in Windows Container Isolation FS Filter Driver (unionfs.sys) allows an authorized attacker to perform tampering locally.
- Product
- Windows 11 Version 24H2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Insertion of sensitive information into externally-accessible file or directory in Windows Storage allows an authorized attacker to disclose information locallyCVE-2026-96944 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 5.5
Insertion of sensitive information into externally-accessible file or directory in Windows Storage allows an authorized attacker to disclose information locally.
- Product
- Windows 11 Version 24H2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Heap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges locally.CVE-2026-96868 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7
Heap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges locally.
- Product
- Windows 11 Version 24H2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Use after free in Windows Win32 Kernel Subsystem allows an authorized attacker to elevate privileges locally.CVE-2026-96249 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Use after free in Windows Win32 Kernel Subsystem allows an authorized attacker to elevate privileges locally.
- Product
- Windows 11 Version 24H2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Use after free in Windows Hyper-V allows an authorized attacker to elevate privileges locally.CVE-2026-96223 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Use after free in Windows Hyper-V allows an authorized attacker to elevate privileges locally.
- Product
- Windows 11 Version 24H2
- 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 Windows Autopilot allows an authorized attacker to elevate privilCVE-2026-96215 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Autopilot allows an authorized attacker to elevate privileges locally.
- Product
- Windows 11 Version 24H2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Missing authentication for critical function in Windows Health and Optimized Experiences Service allows an authorized attacker to disclose information locally.CVE-2026-96183 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 5.5
Missing authentication for critical function in Windows Health and Optimized Experiences Service allows an authorized attacker to disclose information locally.
- Product
- Windows 11 Version 24H2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally.CVE-2026-88139 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7
Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally.
- Product
- Windows 11 Version 24H2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Heap-based buffer overflow in Windows Graphics Kernel allows an authorized attacker to elevate privileges locally.CVE-2026-88110 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7
Heap-based buffer overflow in Windows Graphics Kernel allows an authorized attacker to elevate privileges locally.
- Product
- Windows 11 Version 24H2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Use after free in Windows Storage Spaces Controller allows an authorized attacker to elevate privileges locally.CVE-2026-88100 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Use after free in Windows Storage Spaces Controller allows an authorized attacker to elevate privileges locally.
- Product
- Windows 11 Version 24H2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Null pointer dereference in Windows MIDI Service Module allows an authorized attacker to elevate privileges locally.CVE-2026-88079 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7
Null pointer dereference in Windows MIDI Service Module allows an authorized attacker to elevate privileges locally.
- Product
- Windows 11 Version 24H2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Buffer over-read in Windows StateRepository API allows an authorized attacker to disclose information locally.CVE-2026-85910 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 5.5
Buffer over-read in Windows StateRepository API allows an authorized attacker to disclose information locally.
- Product
- Windows 11 Version 24H2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Missing authentication for critical function in Windows Health and Optimized Experiences Service allows an authorized attacker to elevate privileges locally.CVE-2026-85884 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Missing authentication for critical function in Windows Health and Optimized Experiences Service allows an authorized attacker to elevate privileges locally.
- Product
- Windows 11 Version 24H2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Use after free in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.CVE-2026-85855 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7
Use after free in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.
- Product
- Windows 11 Version 24H2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Out-of-bounds read in Windows Kernel allows an authorized attacker to elevate privileges locally.CVE-2026-85837 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Out-of-bounds read in Windows Kernel allows an authorized attacker to elevate privileges locally.
- Product
- Windows 11 Version 24H2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally.CVE-2026-85836 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally.
- Product
- Windows 11 Version 24H2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Buffer over-read in Servicing Stack Updates allows an authorized attacker to disclose information locally.CVE-2026-85835 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 5.5
Buffer over-read in Servicing Stack Updates allows an authorized attacker to disclose information locally.
- Product
- Windows 11 Version 24H2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Use after free in Windows Composite Image File System allows an authorized attacker to elevate privileges locally.CVE-2026-85823 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7
Use after free in Windows Composite Image File System allows an authorized attacker to elevate privileges locally.
- Product
- Windows 11 Version 24H2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Heap-based buffer overflow in Windows Direct Composition allows an authorized attacker to elevate privileges locally.CVE-2026-83903 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Heap-based buffer overflow in Windows Direct Composition allows an authorized attacker to elevate privileges locally.
- Product
- Windows 11 Version 24H2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Inadequate encryption strength in Windows Virtualization-Based Security (VBS) Enclave allows an authorized attacker to perform spoofing locally.CVE-2026-83885 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 5.6
Inadequate encryption strength in Windows Virtualization-Based Security (VBS) Enclave allows an authorized attacker to perform spoofing locally.
- Product
- Windows 11 Version 24H2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Out-of-bounds read in Windows Aggregated Data Platform Service allows an authorized attacker to disclose information locally.CVE-2026-83870 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 5.5
Out-of-bounds read in Windows Aggregated Data Platform Service allows an authorized attacker to disclose information locally.
- Product
- Windows 11 Version 24H2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Use after free in Windows Bind Filter Driver allows an authorized attacker to elevate privileges locally.CVE-2026-83852 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7
Use after free in Windows Bind Filter Driver allows an authorized attacker to elevate privileges locally.
- Product
- Windows 11 Version 24H2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Heap-based buffer overflow in Windows MIDI Service Module allows an authorized attacker to elevate privileges locally.CVE-2026-83828 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Heap-based buffer overflow in Windows MIDI Service Module allows an authorized attacker to elevate privileges locally.
- Product
- Windows 11 Version 24H2
- 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 MIDI Service Module allows an authorized attacker to disclose information CVE-2026-83773 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 5.5
Exposure of sensitive system information to an unauthorized control sphere in Windows MIDI Service Module allows an authorized attacker to disclose information locally.
- Product
- Windows 11 Version 24H2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Use after free in Windows MIDI Service Module allows an authorized attacker to elevate privileges locally.CVE-2026-83751 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7
Use after free in Windows MIDI Service Module allows an authorized attacker to elevate privileges locally.
- Product
- Windows 11 Version 24H2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Use after free in Windows Win32K allows an authorized attacker to elevate privileges locally.CVE-2026-83721 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Use after free in Windows Win32K allows an authorized attacker to elevate privileges locally.
- Product
- Windows 11 Version 24H2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Use after free in Windows NTFS allows an authorized attacker to elevate privileges locally.CVE-2026-83706 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 6.7
Use after free in Windows NTFS allows an authorized attacker to elevate privileges locally.
- Product
- Windows 11 Version 24H2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Missing release of memory after effective lifetime in Windows DHCP Client allows an unauthorized attacker to deny service over a network.CVE-2026-83677 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.5
Missing release of memory after effective lifetime in Windows DHCP Client allows an unauthorized attacker to deny service over a network.
- Product
- Windows 11 Version 24H2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally.CVE-2026-83675 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7
Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally.
- Product
- Windows 11 Version 24H2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Improper access control in Windows Kernel-Mode Drivers allows an authorized attacker to elevate privileges locally.CVE-2026-83568 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Improper access control in Windows Kernel-Mode Drivers allows an authorized attacker to elevate privileges locally.
- Product
- Windows 11 Version 24H2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Use after free in Windows Win32K - ICOMP allows an authorized attacker to elevate privileges locally.CVE-2026-83566 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7
Use after free in Windows Win32K - ICOMP allows an authorized attacker to elevate privileges locally.
- Product
- Windows 11 Version 24H2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Heap-based buffer overflow in Windows Image Acquisition allows an unauthorized attacker to execute code over a network.CVE-2026-83523 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.8
Heap-based buffer overflow in Windows Image Acquisition allows an unauthorized attacker to execute code over a network.
- Product
- Windows 11 Version 24H2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Use after free in Windows Win32 Kernel Subsystem allows an authorized attacker to elevate privileges locally.CVE-2026-70273 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7
Use after free in Windows Win32 Kernel Subsystem allows an authorized attacker to elevate privileges locally.
- Product
- Windows 11 Version 24H2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Improper authentication in Windows Event Tracing allows an authorized attacker to perform spoofing locally.CVE-2026-70235 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 5.5
Improper authentication in Windows Event Tracing allows an authorized attacker to perform spoofing locally.
- Product
- Windows 11 Version 24H2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Insufficient granularity of access control in Windows StateRepository API allows an authorized attacker to elevate privileges locally.CVE-2026-70218 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Insufficient granularity of access control in Windows StateRepository API allows an authorized attacker to elevate privileges locally.
- Product
- Windows 11 Version 24H2
- 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-2026-70118 · 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 11 Version 24H2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Stack-based buffer overflow in Windows Resilient File System (ReFS) allows an unauthorized attacker to bypass a security feature with a physical attack.CVE-2026-70116 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 4.2
Stack-based buffer overflow in Windows Resilient File System (ReFS) allows an unauthorized attacker to bypass a security feature with a physical attack.
- Product
- Windows 11 Version 24H2
- 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-2026-70115 · 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 11 Version 24H2
- 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 Windows Virtualization-Based Security (VBS) Enclave allows an autCVE-2026-70097 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 5.6
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Virtualization-Based Security (VBS) Enclave allows an authorized attacker to perform spoofing locally.
- Product
- Windows 11 Version 24H2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Use after free in Windows Win32 Kernel Subsystem allows an authorized attacker to elevate privileges locally.CVE-2026-70076 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7
Use after free in Windows Win32 Kernel Subsystem allows an authorized attacker to elevate privileges locally.
- Product
- Windows 11 Version 24H2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Use after free in Windows Direct Composition allows an authorized attacker to elevate privileges locally.CVE-2026-70021 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7
Use after free in Windows Direct Composition allows an authorized attacker to elevate privileges locally.
- Product
- Windows 11 Version 24H2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Incorrect authorization in Windows Kernel-Mode Drivers allows an authorized attacker to disclose information locally.CVE-2026-69971 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 5.5
Incorrect authorization in Windows Kernel-Mode Drivers allows an authorized attacker to disclose information locally.
- Product
- Windows 11 Version 24H2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Uncontrolled search path element in Windows AI allows an authorized attacker to elevate privileges locally.CVE-2026-69923 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Uncontrolled search path element in Windows AI allows an authorized attacker to elevate privileges locally.
- Product
- Windows 11 Version 24H2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Out-of-bounds read in Windows Cryptographic Services allows an authorized attacker to disclose information locally.CVE-2026-69919 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comMedium 5.5
Out-of-bounds read in Windows Cryptographic Services allows an authorized attacker to disclose information locally.
- Product
- Windows 11 Version 24H2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Improper resolution of path equivalence in Windows SmartScreen allows an unauthorized attacker to bypass a security feature over a network.CVE-2026-108463 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 8.8
Improper resolution of path equivalence in Windows SmartScreen allows an unauthorized attacker to bypass a security feature over a network.
- Product
- Windows 11 Version 24H2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Use after free in Windows Autopilot allows an authorized attacker to elevate privileges locally.CVE-2026-108134 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7
Use after free in Windows Autopilot allows an authorized attacker to elevate privileges locally.
- Product
- Windows 11 Version 24H2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Oct 13, 2026Heap-based buffer overflow in Windows Virtualization-Based Security (VBS) Enclave allows an authorized attacker to elevate privileges locally.CVE-2026-108130 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comHigh 7.8
Heap-based buffer overflow in Windows Virtualization-Based Security (VBS) Enclave allows an authorized attacker to elevate privileges locally.
- Product
- Windows 11 Version 24H2
- 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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