Microsoft Windows 11 26H2 vulnerabilities

CVE-2026-96933 [HIGH] CWE-822 CVE-2026-96933: Untrusted pointer dereference in Windows COM+ Event System Service allows an authorized attacker to Untrusted pointer dereference in Windows COM+ Event System Service allows an authorized attacker to elevate privileges locally.

CVE-2026-96847 [HIGH] CWE-822 CVE-2026-96847: Untrusted pointer dereference in WebDAV allows an authorized attacker to elevate privileges locally. Untrusted pointer dereference in WebDAV allows an authorized attacker to elevate privileges locally.

CVE-2026-96953 [HIGH] CWE-476 CVE-2026-96953: Null pointer dereference in Windows Universal Disk Format File System Driver (UDFS) allows an author Null pointer dereference in Windows Universal Disk Format File System Driver (UDFS) allows an authorized attacker to execute code locally.

CVE-2026-88189 [HIGH] CWE-125 CVE-2026-88189: Out-of-bounds read in Windows DWM Core Library allows an authorized attacker to elevate privileges l Out-of-bounds read in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.

CVE-2026-88180 [HIGH] CWE-125 CVE-2026-88180: Out-of-bounds read in Windows DWM Core Library allows an authorized attacker to elevate privileges l Out-of-bounds read in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.

CVE-2026-96306 [HIGH] CWE-125 CVE-2026-96306: Out-of-bounds read in Windows Sysmain Service allows an authorized attacker to elevate privileges lo Out-of-bounds read in Windows Sysmain Service allows an authorized attacker to elevate privileges locally.

CVE-2026-88177 [HIGH] CWE-125 CVE-2026-88177: Out-of-bounds read in Windows DWM Core Library allows an authorized attacker to elevate privileges l Out-of-bounds read in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.

CVE-2026-97817 [MEDIUM] CWE-122 CVE-2026-97817: Heap-based buffer overflow in DNS Server allows an authorized attacker to disclose information over Heap-based buffer overflow in DNS Server allows an authorized attacker to disclose information over a network.

CVE-2026-102189 [HIGH] CWE-122 CVE-2026-102189: Heap-based buffer overflow in Windows Storage allows an authorized attacker to elevate privileges lo Heap-based buffer overflow in Windows Storage allows an authorized attacker to elevate privileges locally.

CVE-2026-100225 [HIGH] CWE-122 CVE-2026-100225: Heap-based buffer overflow in Windows Storage allows an authorized attacker to elevate privileges lo Heap-based buffer overflow in Windows Storage allows an authorized attacker to elevate privileges locally.

CVE-2026-100216 [HIGH] CWE-121 CVE-2026-100216: Stack-based buffer overflow in Windows Storage allows an authorized attacker to elevate privileges l Stack-based buffer overflow in Windows Storage allows an authorized attacker to elevate privileges locally.

CVE-2026-102191 [HIGH] CWE-122 CVE-2026-102191: Heap-based buffer overflow in Windows Storage allows an authorized attacker to elevate privileges lo Heap-based buffer overflow in Windows Storage allows an authorized attacker to elevate privileges locally.

CVE-2026-69452 [HIGH] CWE-416 CVE-2026-69452: Use after free in Windows Enterprise App Management allows an authorized attacker to elevate privile Use after free in Windows Enterprise App Management allows an authorized attacker to elevate privileges over a network.

CVE-2026-100201 [HIGH] CWE-122 CVE-2026-100201: Heap-based buffer overflow in Windows Client License Service allows an authorized attacker to elevat Heap-based buffer overflow in Windows Client License Service allows an authorized attacker to elevate privileges locally.

CVE-2026-100203 [HIGH] CWE-122 CVE-2026-100203: Heap-based buffer overflow in Windows Update Service allows an authorized attacker to elevate privil Heap-based buffer overflow in Windows Update Service allows an authorized attacker to elevate privileges locally.

CVE-2026-85791 [HIGH] CWE-122 CVE-2026-85791: Heap-based buffer overflow in Windows Encrypting File System (EFS) allows an authorized attacker to Heap-based buffer overflow in Windows Encrypting File System (EFS) allows an authorized attacker to elevate privileges locally.

CVE-2026-69970 [HIGH] CWE-122 CVE-2026-69970: 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-2026-96868 [HIGH] CWE-122 CVE-2026-96868: 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-2026-83871 [HIGH] CWE-122 CVE-2026-83871: Heap-based buffer overflow in OpenSSH for Windows allows an authorized attacker to elevate privilege Heap-based buffer overflow in OpenSSH for Windows allows an authorized attacker to elevate privileges locally.

CVE-2026-84014 [HIGH] CWE-122 CVE-2026-84014: 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.