Microsoft Windows 11 Version 23H2 vulnerabilities

CVE-2026-20804 [HIGH] CWE-266 CVE-2026-20804: Incorrect privilege assignment in Windows Hello allows an unauthorized attacker to perform tampering Incorrect privilege assignment in Windows Hello allows an unauthorized attacker to perform tampering locally.

CVE-2026-85858 [HIGH] CWE-125 CVE-2026-85858: Out-of-bounds read in Windows Win32 Kernel Subsystem allows an authorized attacker to elevate privil Out-of-bounds read in Windows Win32 Kernel Subsystem allows an authorized attacker to elevate privileges locally.

CVE-2026-34336 [HIGH] CWE-122 CVE-2026-34336: Integer overflow or wraparound in Windows DWM Core Library allows an authorized attacker to elevate Integer overflow or wraparound in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.

CVE-2026-88189 [HIGH] CWE-125 CVE-2026-88189: Out-of-bounds read in Windows DWM Core Library allows an authorized attacker to elevate privileges l Out-of-bounds read in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.

CVE-2026-88180 [HIGH] CWE-125 CVE-2026-88180: Out-of-bounds read in Windows DWM Core Library allows an authorized attacker to elevate privileges l Out-of-bounds read in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.

CVE-2026-96306 [HIGH] CWE-125 CVE-2026-96306: Out-of-bounds read in Windows Sysmain Service allows an authorized attacker to elevate privileges lo Out-of-bounds read in Windows Sysmain Service allows an authorized attacker to elevate privileges locally.

CVE-2026-88177 [HIGH] CWE-125 CVE-2026-88177: Out-of-bounds read in Windows DWM Core Library allows an authorized attacker to elevate privileges l Out-of-bounds read in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.

CVE-2026-26184 [HIGH] CWE-126 CVE-2026-26184: Buffer over-read in Windows Projected File System allows an authorized attacker to elevate privilege Buffer over-read in Windows Projected File System allows an authorized attacker to elevate privileges locally.

CVE-2024-38119 [HIGH] CWE-416 CVE-2024-38119: Windows Network Address Translation (NAT) Remote Code Execution Vulnerability Windows Network Address Translation (NAT) Remote Code Execution Vulnerability

CVE-2026-21247 [HIGH] CWE-20 CVE-2026-21247: Improper input validation in Windows Hyper-V allows an authorized attacker to execute code locally. Improper input validation in Windows Hyper-V allows an authorized attacker to execute code locally.

CVE-2026-20853 [HIGH] CWE-362 CVE-2026-20853: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo Concurrent execution using shared resource with improper synchronization ('race condition') in Windows WalletService allows an unauthorized attacker to elevate privileges locally.

CVE-2026-68846 [HIGH] CWE-416 CVE-2026-68846: Use after free in Windows Kernel allows an authorized attacker to elevate privileges over a network. Use after free in Windows Kernel allows an authorized attacker to elevate privileges over a network.

CVE-2026-69336 [HIGH] CWE-122 CVE-2026-69336: Heap-based buffer overflow in Microsoft Standard XPS allows an authorized attacker to elevate privil Heap-based buffer overflow in Microsoft Standard XPS allows an authorized attacker to elevate privileges over a network.

CVE-2026-68889 [HIGH] CWE-122 CVE-2026-68889: Heap-based buffer overflow in Microsoft Standard XPS allows an authorized attacker to elevate privil Heap-based buffer overflow in Microsoft Standard XPS allows an authorized attacker to elevate privileges over a network.

CVE-2026-69366 [HIGH] CWE-416 CVE-2026-69366: Use after free in Windows Kernel allows an authorized attacker to elevate privileges over a network. Use after free in Windows Kernel allows an authorized attacker to elevate privileges over a network.

CVE-2026-69272 [HIGH] CWE-122 CVE-2026-69272: Heap-based buffer overflow in Microsoft Standard XPS allows an authorized attacker to elevate privil Heap-based buffer overflow in Microsoft Standard XPS allows an authorized attacker to elevate privileges over a network.

CVE-2026-69313 [HIGH] CWE-122 CVE-2026-69313: Heap-based buffer overflow in Microsoft Standard XPS allows an authorized attacker to elevate privil Heap-based buffer overflow in Microsoft Standard XPS allows an authorized attacker to elevate privileges over a network.

CVE-2026-97817 [MEDIUM] CWE-122 CVE-2026-97817: Heap-based buffer overflow in DNS Server allows an authorized attacker to disclose information over Heap-based buffer overflow in DNS Server allows an authorized attacker to disclose information over a network.

CVE-2024-43584 [HIGH] CWE-693 CVE-2024-43584: Windows Scripting Engine Security Feature Bypass Vulnerability Windows Scripting Engine Security Feature Bypass Vulnerability

CVE-2024-20696 [HIGH] CWE-122 CVE-2024-20696: Windows libarchive Remote Code Execution Vulnerability Windows libarchive Remote Code Execution Vulnerability