Microsoft Windows 11 25H2 vulnerabilities

CVE-2026-50327 [HIGH] CWE-122 CVE-2026-50327: 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-2026-58542 [HIGH] CWE-122 CVE-2026-58542: 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-2026-50680 [HIGH] CWE-122 CVE-2026-50680: 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.

CVE-2026-50477 [HIGH] CWE-122 CVE-2026-50477: 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-2026-56650 [HIGH] CWE-122 CVE-2026-56650: Heap-based buffer overflow in Windows Network File System allows an authorized attacker to elevate p Heap-based buffer overflow in Windows Network File System allows an authorized attacker to elevate privileges locally.

CVE-2026-50484 [HIGH] CWE-122 CVE-2026-50484: 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-2026-58538 [HIGH] CWE-122 CVE-2026-58538: 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-2026-50679 [HIGH] CWE-122 CVE-2026-50679: Heap-based buffer overflow in Microsoft Windows Search Component allows an authorized attacker to el Heap-based buffer overflow in Microsoft Windows Search Component allows an authorized attacker to elevate privileges locally.

CVE-2026-50363 [HIGH] CWE-122 CVE-2026-50363: Heap-based buffer overflow in Windows Push Notifications allows an authorized attacker to elevate pr Heap-based buffer overflow in Windows Push Notifications allows an authorized attacker to elevate privileges locally.

CVE-2026-50494 [HIGH] CWE-122 CVE-2026-50494: Heap-based buffer overflow in Windows NTFS allows an authorized attacker to execute code locally. Heap-based buffer overflow in Windows NTFS allows an authorized attacker to execute code locally.

CVE-2026-50417 [HIGH] CWE-20 CVE-2026-50417: Heap-based buffer overflow in Windows NTFS allows an authorized attacker to execute code locally. Heap-based buffer overflow in Windows NTFS allows an authorized attacker to execute code locally.

CVE-2026-50336 [HIGH] CWE-122 CVE-2026-50336: Heap-based buffer overflow in Windows Media allows an authorized attacker to elevate privileges loca Heap-based buffer overflow in Windows Media allows an authorized attacker to elevate privileges locally.

CVE-2026-56175 [HIGH] CWE-122 CVE-2026-56175: Heap-based buffer overflow in Windows NTFS allows an authorized attacker to elevate privileges local Heap-based buffer overflow in Windows NTFS allows an authorized attacker to elevate privileges locally.

CVE-2026-33841 [HIGH] CWE-122 CVE-2026-33841: 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-2026-40377 [HIGH] CWE-122 CVE-2026-40377: Heap-based buffer overflow in Windows Cryptographic Services allows an authorized attacker to elevat Heap-based buffer overflow in Windows Cryptographic Services allows an authorized attacker to elevate privileges locally.

CVE-2026-26180 [HIGH] CWE-122 CVE-2026-26180: 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-2026-50400 [HIGH] CWE-121 CVE-2026-50400: Stack-based buffer overflow in Windows App Installer allows an authorized attacker to elevate privil Stack-based buffer overflow in Windows App Installer allows an authorized attacker to elevate privileges locally.

CVE-2026-26178 [HIGH] CWE-190 CVE-2026-26178: Integer size truncation in Windows Advanced Rasterization Platform (WARP) allows an unauthorized att Integer size truncation in Windows Advanced Rasterization Platform (WARP) allows an unauthorized attacker to elevate privileges locally.

CVE-2025-58715 [HIGH] CWE-190 CVE-2025-58715: Integer overflow or wraparound in Microsoft Windows Speech allows an authorized attacker to elevate Integer overflow or wraparound in Microsoft Windows Speech allows an authorized attacker to elevate privileges locally.

CVE-2025-58716 [HIGH] CWE-20 CVE-2025-58716: Improper input validation in Microsoft Windows Speech allows an authorized attacker to elevate privi Improper input validation in Microsoft Windows Speech allows an authorized attacker to elevate privileges locally.