Microsoft Windows 11 23H2 vulnerabilities

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-2026-20927 [MEDIUM] CWE-362 CVE-2026-20927: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo Concurrent execution using shared resource with improper synchronization ('race condition') in Windows SMB Server allows an authorized attacker to deny service over a network.

CVE-2026-20876 [MEDIUM] CWE-122 CVE-2026-20876: Heap-based buffer overflow in Windows Virtualization-Based Security (VBS) Enclave allows an authoriz Heap-based buffer overflow in Windows Virtualization-Based Security (VBS) Enclave allows an authorized attacker to elevate privileges locally.

CVE-2025-62458 [HIGH] CWE-122 CVE-2025-62458: Heap-based buffer overflow in Windows Win32K - GRFX allows an authorized attacker to elevate privile Heap-based buffer overflow in Windows Win32K - GRFX allows an authorized attacker to elevate privileges locally.

CVE-2025-62571 [HIGH] CWE-20 CVE-2025-62571: Improper input validation in Windows Installer allows an authorized attacker to elevate privileges l Improper input validation in Windows Installer allows an authorized attacker to elevate privileges locally.

CVE-2025-59516 [HIGH] CWE-73 CVE-2025-59516: Missing authentication for critical function in Windows Storage VSP Driver allows an authorized atta Missing authentication for critical function in Windows Storage VSP Driver allows an authorized attacker to elevate privileges locally.

CVE-2025-62454 [HIGH] CWE-122 CVE-2025-62454: Heap-based buffer overflow in Windows Cloud Files Mini Filter Driver allows an authorized attacker t Heap-based buffer overflow in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges locally.

CVE-2025-62462 [HIGH] CWE-126 CVE-2025-62462: 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-2025-62549 [HIGH] CWE-822 CVE-2025-62549: Untrusted pointer dereference in Windows Routing and Remote Access Service (RRAS) allows an unauthor Untrusted pointer dereference in Windows Routing and Remote Access Service (RRAS) allows an unauthorized attacker to execute code over a network.

CVE-2025-62573 [HIGH] CWE-362 CVE-2025-62573: Use after free in Windows DirectX allows an authorized attacker to elevate privileges locally. Use after free in Windows DirectX allows an authorized attacker to elevate privileges locally.

CVE-2025-62457 [HIGH] CWE-125 CVE-2025-62457: Out-of-bounds read in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevat Out-of-bounds read in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges locally.

CVE-2025-62464 [HIGH] CWE-126 CVE-2025-62464: 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-2025-62470 [HIGH] CWE-122 CVE-2025-62470: Heap-based buffer overflow in Windows Common Log File System Driver allows an authorized attacker to Heap-based buffer overflow in Windows Common Log File System Driver allows an authorized attacker to elevate privileges locally.

CVE-2025-55233 [HIGH] CWE-125 CVE-2025-55233: Out-of-bounds read in Windows Projected File System allows an authorized attacker to elevate privile Out-of-bounds read in Windows Projected File System allows an authorized attacker to elevate privileges locally.

CVE-2025-64679 [HIGH] CWE-122 CVE-2025-64679: Heap-based buffer overflow in Windows DWM Core Library allows an authorized attacker to elevate priv Heap-based buffer overflow in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.

CVE-2025-62456 [HIGH] CWE-122 CVE-2025-62456: Heap-based buffer overflow in Windows Resilient File System (ReFS) allows an authorized attacker to Heap-based buffer overflow in Windows Resilient File System (ReFS) allows an authorized attacker to execute code over a network.

CVE-2025-62466 [HIGH] CWE-476 CVE-2025-62466: Null pointer dereference in Windows Client-Side Caching (CSC) Service allows an authorized attacker Null pointer dereference in Windows Client-Side Caching (CSC) Service allows an authorized attacker to elevate privileges locally.

CVE-2025-64678 [HIGH] CWE-122 CVE-2025-64678: Heap-based buffer overflow in Windows Routing and Remote Access Service (RRAS) allows an unauthorize Heap-based buffer overflow in Windows Routing and Remote Access Service (RRAS) allows an unauthorized attacker to execute code over a network.

CVE-2025-62461 [HIGH] CWE-126 CVE-2025-62461: Buffer over-read in Windows Projected File System Filter Driver allows an authorized attacker to ele Buffer over-read in Windows Projected File System Filter Driver allows an authorized attacker to elevate privileges locally.

CVE-2025-62472 [HIGH] CWE-416 CVE-2025-62472: Use of uninitialized resource in Windows Remote Access Connection Manager allows an authorized attac Use of uninitialized resource in Windows Remote Access Connection Manager allows an authorized attacker to elevate privileges locally.