Microsoft Windows 11 Version 24H2 vulnerabilities

CVE-2026-83860 [HIGH] CWE-121 CVE-2026-83860: Stack-based buffer overflow in Windows GDI allows an unauthorized attacker to deny service over a ne Stack-based buffer overflow in Windows GDI allows an unauthorized attacker to deny service over a network.

CVE-2026-70233 [HIGH] CWE-122 CVE-2026-70233: 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-2025-26668 [HIGH] CWE-122 CVE-2025-26668: 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-2026-21236 [HIGH] CWE-122 CVE-2026-21236: Heap-based buffer overflow in Windows Ancillary Function Driver for WinSock allows an authorized att Heap-based buffer overflow in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.

CVE-2026-83830 [HIGH] CWE-122 CVE-2026-83830: Heap-based buffer overflow in Windows COM+ Event System Service allows an authorized attacker to ele Heap-based buffer overflow in Windows COM+ Event System Service allows an authorized attacker to elevate privileges locally.

CVE-2026-70132 [HIGH] CWE-122 CVE-2026-70132: Heap-based buffer overflow in Windows Portable Device File System Driver allows an authorized attack Heap-based buffer overflow in Windows Portable Device File System Driver allows an authorized attacker to elevate privileges locally.

CVE-2026-70103 [HIGH] CWE-122 CVE-2026-70103: Heap-based buffer overflow in Windows Error Reporting allows an authorized attacker to elevate privi Heap-based buffer overflow in Windows Error Reporting allows an authorized attacker to elevate privileges locally.

CVE-2026-83514 [HIGH] CWE-122 CVE-2026-83514: Heap-based buffer overflow in Windows Partition Management Driver allows an authorized attacker to e Heap-based buffer overflow in Windows Partition Management Driver allows an authorized attacker to elevate privileges locally.

CVE-2026-83518 [HIGH] CWE-122 CVE-2026-83518: Heap-based buffer overflow in RPC Runtime allows an authorized attacker to elevate privileges locall Heap-based buffer overflow in RPC Runtime allows an authorized attacker to elevate privileges locally.

CVE-2026-69354 [HIGH] CWE-122 CVE-2026-69354: Heap-based buffer overflow in Windows Error Reporting allows an authorized attacker to elevate privi Heap-based buffer overflow in Windows Error Reporting allows an authorized attacker to elevate privileges locally.

CVE-2026-70048 [HIGH] CWE-122 CVE-2026-70048: 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 elevate privileges locally.

CVE-2026-70112 [HIGH] CWE-122 CVE-2026-70112: Heap-based buffer overflow in Windows Spaceport.sys allows an authorized attacker to execute code lo Heap-based buffer overflow in Windows Spaceport.sys allows an authorized attacker to execute code locally.

CVE-2026-83881 [HIGH] CWE-122 CVE-2026-83881: Heap-based buffer overflow in Windows exFAT File System allows an authorized attacker to elevate pri Heap-based buffer overflow in Windows exFAT File System allows an authorized attacker to elevate privileges locally.

CVE-2026-69949 [HIGH] CWE-122 CVE-2026-69949: Heap-based buffer overflow in Windows Client for NFS allows an authorized attacker to elevate privil Heap-based buffer overflow in Windows Client for NFS allows an authorized attacker to elevate privileges locally.

CVE-2026-70143 [HIGH] CWE-122 CVE-2026-70143: Heap-based buffer overflow in Windows Network File System allows an authorized attacker to execute c Heap-based buffer overflow in Windows Network File System allows an authorized attacker to execute code locally.

CVE-2026-70093 [HIGH] CWE-122 CVE-2026-70093: Heap-based buffer overflow in Windows Rich Text Edit Control allows an authorized attacker to elevat Heap-based buffer overflow in Windows Rich Text Edit Control allows an authorized attacker to elevate privileges locally.

CVE-2026-83569 [HIGH] CWE-122 CVE-2026-83569: Heap-based buffer overflow in HID Parser Library allows an authorized attacker to elevate privileges Heap-based buffer overflow in HID Parser Library allows an authorized attacker to elevate privileges locally.

CVE-2026-78459 [HIGH] CWE-122 CVE-2026-78459: Heap-based buffer overflow in Windows Internet Information Services allows an authorized attacker to Heap-based buffer overflow in Windows Internet Information Services allows an authorized attacker to elevate privileges locally.

CVE-2026-50501 [HIGH] CWE-121 CVE-2026-50501: Stack-based buffer overflow in Windows Resilient File System (ReFS) allows an unauthorized attacker Stack-based buffer overflow in Windows Resilient File System (ReFS) allows an unauthorized attacker to execute code locally.

CVE-2026-83698 [HIGH] CWE-122 CVE-2026-83698: Heap-based buffer overflow in Windows Client-Side Caching (CSC) Service allows an authorized attacke Heap-based buffer overflow in Windows Client-Side Caching (CSC) Service allows an authorized attacker to elevate privileges locally.