Microsoft Windows 10 21H2 vulnerabilities

CVE-2024-26170 [HIGH] CWE-20 CVE-2024-26170: Windows Composite Image File System (CimFS) Elevation of Privilege Vulnerability Windows Composite Image File System (CimFS) Elevation of Privilege Vulnerability

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-2025-26688 [HIGH] CWE-121 CVE-2025-26688: Stack-based buffer overflow in Microsoft Virtual Hard Drive allows an authorized attacker to elevate Stack-based buffer overflow in Microsoft Virtual Hard Drive allows an authorized attacker to elevate privileges locally.

CVE-2026-100215 [HIGH] CWE-122 CVE-2026-100215: Heap-based buffer overflow in Microsoft Graphics Component allows an unauthorized attacker to execut Heap-based buffer overflow in Microsoft Graphics Component allows an unauthorized attacker to execute code locally.

CVE-2023-35632 [HIGH] CWE-190 CVE-2023-35632: Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability

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-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-2026-70131 [HIGH] CWE-122 CVE-2026-70131: Heap-based buffer overflow in Microsoft Windows Media Foundation allows an unauthorized attacker to Heap-based buffer overflow in Microsoft Windows Media Foundation allows an unauthorized attacker to elevate privileges locally.

CVE-2026-83836 [HIGH] CWE-122 CVE-2026-83836: Heap-based buffer overflow in Windows Event Tracing allows an unauthorized attacker to execute code Heap-based buffer overflow in Windows Event Tracing allows an unauthorized attacker to execute code locally.

CVE-2026-20810 [HIGH] CWE-590 CVE-2026-20810: Free of memory not on the heap in Windows Ancillary Function Driver for WinSock allows an authorized Free of memory not on the heap in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.

CVE-2026-70092 [HIGH] CWE-122 CVE-2026-70092: Heap-based buffer overflow in Microsoft PostScript Printer Driver allows an unauthorized attacker to Heap-based buffer overflow in Microsoft PostScript Printer Driver allows an unauthorized attacker to elevate privileges 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-2026-50313 [HIGH] CWE-122 CVE-2026-50313: 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-2026-50448 [HIGH] CWE-122 CVE-2026-50448: 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-2026-49796 [HIGH] CWE-122 CVE-2026-49796: 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-2026-50461 [HIGH] CWE-122 CVE-2026-50461: 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-2026-49797 [HIGH] CWE-122 CVE-2026-49797: 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-2026-50655 [HIGH] CWE-122 CVE-2026-50655: 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-2026-50386 [HIGH] CWE-122 CVE-2026-50386: 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-2025-53155 [HIGH] CWE-122 CVE-2025-53155: Heap-based buffer overflow in Windows Hyper-V allows an authorized attacker to elevate privileges lo Heap-based buffer overflow in Windows Hyper-V allows an authorized attacker to elevate privileges locally.