Microsoft Windows 11 23H2 vulnerabilities

CVE-2025-26674 [HIGH] CWE-122 CVE-2025-26674: Heap-based buffer overflow in Windows Media allows an authorized attacker to execute code locally. Heap-based buffer overflow in Windows Media allows an authorized attacker to execute code locally.

CVE-2025-60714 [HIGH] CWE-122 CVE-2025-60714: Heap-based buffer overflow in Windows OLE allows an unauthorized attacker to execute code locally. Heap-based buffer overflow in Windows OLE allows an unauthorized attacker to execute code locally.

CVE-2025-27490 [HIGH] CWE-122 CVE-2025-27490: Heap-based buffer overflow in Windows Bluetooth Service allows an authorized attacker to elevate pri Heap-based buffer overflow in Windows Bluetooth Service allows an authorized attacker to elevate privileges locally.

CVE-2026-35421 [HIGH] CWE-122 CVE-2026-35421: Heap-based buffer overflow in Windows GDI allows an unauthorized attacker to execute code locally. Heap-based buffer overflow in Windows GDI allows an unauthorized attacker to execute code locally.

CVE-2024-30098 [HIGH] CWE-327 CVE-2024-30098: Windows Cryptographic Services Security Feature Bypass Vulnerability Windows Cryptographic Services Security Feature Bypass Vulnerability

CVE-2026-20920 [HIGH] CWE-416 CVE-2026-20920: Use after free in Windows Win32K - ICOMP allows an authorized attacker to elevate privileges locally Use after free in Windows Win32K - ICOMP allows an authorized attacker to elevate privileges locally.

CVE-2026-48574 [HIGH] CWE-122 CVE-2026-48574: Heap-based buffer overflow in Windows Media allows an unauthorized attacker to execute code locally. Heap-based buffer overflow in Windows Media allows an unauthorized attacker to execute code locally.

CVE-2026-45636 [HIGH] CWE-20 CVE-2026-45636: Heap-based buffer overflow in Windows NTFS allows an unauthorized attacker to execute code locally. Heap-based buffer overflow in Windows NTFS allows an unauthorized attacker to execute code locally.

CVE-2025-62474 [HIGH] CWE-284 CVE-2025-62474: Improper access control in Windows Remote Access Connection Manager allows an authorized attacker to Improper access control in Windows Remote Access Connection Manager allows an authorized attacker to elevate privileges locally.

CVE-2025-53789 [HIGH] CWE-306 CVE-2025-53789: Missing authentication for critical function in Windows StateRepository API allows an authorized att Missing authentication for critical function in Windows StateRepository API allows an authorized attacker to elevate privileges locally.

CVE-2026-35417 [HIGH] CWE-843 CVE-2026-35417: Use after free in Windows Win32K - GRFX allows an authorized attacker to elevate privileges locally. Use after free in Windows Win32K - GRFX allows an authorized attacker to elevate privileges locally.

CVE-2026-40399 [HIGH] CWE-121 CVE-2026-40399: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo Concurrent execution using shared resource with improper synchronization ('race condition') in Windows TCP/IP allows an authorized attacker to elevate privileges locally.

CVE-2026-34343 [HIGH] CWE-122 CVE-2026-34343: Heap-based buffer overflow in Windows Application Identity (AppID) Subsystem allows an authorized at Heap-based buffer overflow in Windows Application Identity (AppID) Subsystem allows an authorized attacker to elevate privileges locally.

CVE-2026-45641 [HIGH] CWE-843 CVE-2026-45641: Access of resource using incompatible type ('type confusion') in Windows Hyper-V allows an unauthori Access of resource using incompatible type ('type confusion') in Windows Hyper-V allows an unauthorized attacker to execute code locally.

CVE-2026-50471 [HIGH] CWE-122 CVE-2026-50471: Heap-based buffer overflow in Windows NTFS allows an unauthorized attacker to execute code locally. Heap-based buffer overflow in Windows NTFS allows an unauthorized attacker to execute code locally.

CVE-2026-34333 [HIGH] CWE-190 CVE-2026-34333: Use after free in Windows Win32K - GRFX allows an authorized attacker to elevate privileges locally. Use after free in Windows Win32K - GRFX allows an authorized attacker to elevate privileges locally.

CVE-2026-48583 [HIGH] CWE-416 CVE-2026-48583: Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally. Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally.

CVE-2026-26159 [HIGH] CWE-306 CVE-2026-26159: Missing authentication for critical function in Windows Remote Desktop Licensing Service allows an a Missing authentication for critical function in Windows Remote Desktop Licensing Service allows an authorized attacker to elevate privileges locally.

CVE-2023-35644 [HIGH] CWE-190 CVE-2023-35644: Windows Sysmain Service Elevation of Privilege Vulnerability Windows Sysmain Service Elevation of Privilege Vulnerability

CVE-2026-26176 [HIGH] CWE-122 CVE-2026-26176: Heap-based buffer overflow in Windows Client Side Caching driver (csc.sys) allows an authorized atta Heap-based buffer overflow in Windows Client Side Caching driver (csc.sys) allows an authorized attacker to elevate privileges locally.