Microsoft Windows 11 23H2 vulnerabilities

CVE-2026-69394 [HIGH] CWE-122 CVE-2026-69394: Heap-based buffer overflow in Windows Audio Service allows an authorized attacker to elevate privile Heap-based buffer overflow in Windows Audio Service allows an authorized attacker to elevate privileges locally.

CVE-2026-62753 [HIGH] CWE-122 CVE-2026-62753: Heap-based buffer overflow in Windows HTTP.sys allows an authorized attacker to elevate privileges l Heap-based buffer overflow in Windows HTTP.sys allows an authorized attacker to elevate privileges locally.

CVE-2026-83680 [HIGH] CWE-122 CVE-2026-83680: Heap-based buffer overflow in Windows Installer allows an authorized attacker to elevate privileges Heap-based buffer overflow in Windows Installer allows an authorized attacker to elevate privileges locally.

CVE-2026-45653 [HIGH] CWE-122 CVE-2026-45653: Heap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges loc Heap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges locally.

CVE-2026-85828 [HIGH] CWE-122 CVE-2026-85828: Heap-based buffer overflow in WebDAV allows an authorized attacker to elevate privileges locally. Heap-based buffer overflow in WebDAV allows an authorized attacker to elevate privileges locally.

CVE-2026-85834 [HIGH] CWE-122 CVE-2026-85834: Heap-based buffer overflow in Windows TCP/IP allows an authorized attacker to elevate privileges loc Heap-based buffer overflow in Windows TCP/IP allows an authorized attacker to elevate privileges locally.

CVE-2026-83871 [HIGH] CWE-122 CVE-2026-83871: Heap-based buffer overflow in OpenSSH for Windows allows an authorized attacker to elevate privilege Heap-based buffer overflow in OpenSSH for Windows allows an authorized attacker to elevate privileges locally.

CVE-2026-84014 [HIGH] CWE-122 CVE-2026-84014: Heap-based buffer overflow in Windows Device Association Service allows an authorized attacker to el Heap-based buffer overflow in Windows Device Association Service allows an authorized attacker to elevate privileges locally.

CVE-2026-83683 [MEDIUM] CWE-36 CVE-2026-83683: Absolute path traversal in Windows Encrypting File System (EFS) allows an authorized attacker to dis Absolute path traversal in Windows Encrypting File System (EFS) allows an authorized attacker to disclose information over a network.

CVE-2026-20812 [MEDIUM] CWE-20 CVE-2026-20812: Improper input validation in Windows LDAP - Lightweight Directory Access Protocol allows an authoriz Improper input validation in Windows LDAP - Lightweight Directory Access Protocol allows an authorized attacker to perform tampering over a network.

CVE-2026-85840 [MEDIUM] CWE-552 CVE-2026-85840: Files or directories accessible to external parties in Windows Event Viewer allows an authorized att Files or directories accessible to external parties in Windows Event Viewer allows an authorized attacker to disclose information over a network.

CVE-2026-88137 [MEDIUM] CWE-552 CVE-2026-88137: Files or directories accessible to external parties in WebDAV allows an authorized attacker to discl Files or directories accessible to external parties in WebDAV allows an authorized attacker to disclose information over a network.

CVE-2026-97828 [MEDIUM] CWE-126 CVE-2026-97828: Buffer over-read in DNS Server allows an authorized attacker to disclose information over a network. Buffer over-read in DNS Server allows an authorized attacker to disclose information over a network.

CVE-2025-21220 [HIGH] CWE-908 CVE-2025-21220: Microsoft Message Queuing Information Disclosure Vulnerability Microsoft Message Queuing Information Disclosure Vulnerability

CVE-2023-36393 [HIGH] CWE-426 CVE-2023-36393: Windows User Interface Application Core Remote Code Execution Vulnerability Windows User Interface Application Core Remote Code Execution Vulnerability

CVE-2024-30073 [HIGH] CWE-41 CVE-2024-30073: Windows Security Zone Mapping Security Feature Bypass Vulnerability Windows Security Zone Mapping Security Feature Bypass Vulnerability

CVE-2024-38066 [HIGH] CWE-416 CVE-2024-38066: Windows Win32k Elevation of Privilege Vulnerability Windows Win32k Elevation of Privilege Vulnerability

CVE-2024-30072 [HIGH] CWE-190 CVE-2024-30072: Microsoft Event Trace Log File Parsing Remote Code Execution Vulnerability Microsoft Event Trace Log File Parsing Remote Code Execution Vulnerability

CVE-2024-21442 [HIGH] CWE-170 CVE-2024-21442: Windows USB Print Driver Elevation of Privilege Vulnerability Windows USB Print Driver Elevation of Privilege Vulnerability

CVE-2024-38034 [HIGH] CWE-190 CVE-2024-38034: Windows Filtering Platform Elevation of Privilege Vulnerability Windows Filtering Platform Elevation of Privilege Vulnerability