Microsoft Windows 11 Version 25H2 vulnerabilities

CVE-2026-50482 [HIGH] CWE-122 CVE-2026-50482: 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-2026-58640 [HIGH] CWE-122 CVE-2026-58640: 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-2026-96916 [HIGH] CWE-122 CVE-2026-96916: 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-2026-96843 [HIGH] CWE-122 CVE-2026-96843: Heap-based buffer overflow in WebDAV allows an authorized attacker to elevate privileges locally. Heap-based buffer overflow in WebDAV allows an authorized attacker to elevate privileges locally.

CVE-2026-69963 [HIGH] CWE-122 CVE-2026-69963: Heap-based buffer overflow in Microsoft Streaming Service allows an authorized attacker to elevate p Heap-based buffer overflow in Microsoft Streaming Service allows an authorized attacker to elevate privileges locally.

CVE-2026-83847 [HIGH] CWE-122 CVE-2026-83847: Heap-based buffer overflow in Microsoft Account allows an authorized attacker to elevate privileges Heap-based buffer overflow in Microsoft Account allows an authorized attacker to elevate privileges locally.

CVE-2026-69909 [HIGH] CWE-122 CVE-2026-69909: Heap-based buffer overflow in Microsoft COM for Windows allows an authorized attacker to elevate pri Heap-based buffer overflow in Microsoft COM for Windows allows an authorized attacker to elevate privileges locally.

CVE-2026-72927 [HIGH] CWE-122 CVE-2026-72927: Heap-based buffer overflow in Winsock allows an authorized attacker to elevate privileges locally. Heap-based buffer overflow in Winsock allows an authorized attacker to elevate privileges locally.

CVE-2026-70330 [HIGH] CWE-122 CVE-2026-70330: Heap-based buffer overflow in Windows DNS allows an authorized attacker to elevate privileges locall Heap-based buffer overflow in Windows DNS allows an authorized attacker to elevate privileges locally.

CVE-2026-70304 [HIGH] CWE-122 CVE-2026-70304: Heap-based buffer overflow in Windows DNS allows an authorized attacker to elevate privileges locall Heap-based buffer overflow in Windows DNS allows an authorized attacker to elevate privileges 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-2026-54992 [HIGH] CWE-122 CVE-2026-54992: Heap-based buffer overflow in Windows Message Queuing Queue Manager allows an unauthorized attacker Heap-based buffer overflow in Windows Message Queuing Queue Manager allows an unauthorized attacker to execute code locally.

CVE-2026-20854 [HIGH] CWE-416 CVE-2026-20854: Use after free in Windows Local Security Authority Subsystem Service (LSASS) allows an authorized at Use after free in Windows Local Security Authority Subsystem Service (LSASS) allows an authorized attacker to execute code over a network.

CVE-2026-83920 [HIGH] CWE-122 CVE-2026-83920: 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-2026-69478 [HIGH] CWE-122 CVE-2026-69478: Heap-based buffer overflow in Windows Device Association Service allows an authorized attacker to el Heap-based buffer overflow in Windows Device Association Service allows an authorized attacker to elevate privileges locally.

CVE-2026-72941 [HIGH] CWE-122 CVE-2026-72941: Heap-based buffer overflow in Windows Biometric Service allows an authorized attacker to elevate pri Heap-based buffer overflow in Windows Biometric Service allows an authorized attacker to elevate privileges locally.

CVE-2026-83967 [HIGH] CWE-122 CVE-2026-83967: Heap-based buffer overflow in Windows Biometric Service allows an authorized attacker to elevate pri Heap-based buffer overflow in Windows Biometric Service allows an authorized attacker to elevate privileges locally.

CVE-2026-69456 [HIGH] CWE-122 CVE-2026-69456: Heap-based buffer overflow in Microsoft Windows Speech allows an authorized attacker to elevate priv Heap-based buffer overflow in Microsoft Windows Speech allows an authorized attacker to elevate privileges locally.

CVE-2026-69691 [HIGH] CWE-122 CVE-2026-69691: Heap-based buffer overflow in Windows Spaceport.sys allows an authorized attacker to elevate privile Heap-based buffer overflow in Windows Spaceport.sys allows an authorized attacker to elevate privileges locally.

CVE-2026-69476 [HIGH] CWE-122 CVE-2026-69476: Heap-based buffer overflow in Windows Biometric Service allows an authorized attacker to elevate pri Heap-based buffer overflow in Windows Biometric Service allows an authorized attacker to elevate privileges locally.