Microsoft Windows 11 26H2 vulnerabilities

CVE-2026-88071 [HIGH] CWE-415 CVE-2026-88071: Double free in Windows Hyper-V allows an authorized attacker to elevate privileges locally. Double free in Windows Hyper-V allows an authorized attacker to elevate privileges locally.

CVE-2026-85807 [HIGH] CWE-190 CVE-2026-85807: Integer overflow or wraparound in Windows USB Video Driver allows an authorized attacker to elevate Integer overflow or wraparound in Windows USB Video Driver allows an authorized attacker to elevate privileges locally.

CVE-2026-85377 [HIGH] CWE-843 CVE-2026-85377: Access of resource using incompatible type ('type confusion') in Windows CD-ROM Driver allows an aut Access of resource using incompatible type ('type confusion') in Windows CD-ROM Driver allows an authorized attacker to elevate privileges locally.

CVE-2026-85837 [HIGH] CWE-125 CVE-2026-85837: Out-of-bounds read in Windows Kernel allows an authorized attacker to elevate privileges locally. Out-of-bounds read in Windows Kernel allows an authorized attacker to elevate privileges locally.

CVE-2026-96928 [HIGH] CWE-125 CVE-2026-96928: Out-of-bounds read in Windows NTFS allows an authorized attacker to elevate privileges locally. Out-of-bounds read in Windows NTFS allows an authorized attacker to elevate privileges locally.

CVE-2026-97800 [HIGH] CWE-732 CVE-2026-97800: Incorrect permission assignment for critical resource in Windows Mobile Broadband allows an authoriz Incorrect permission assignment for critical resource in Windows Mobile Broadband allows an authorized attacker to elevate privileges locally.

CVE-2026-96915 [HIGH] CWE-190 CVE-2026-96915: Integer overflow or wraparound in Windows Kernel-Mode Drivers allows an authorized attacker to eleva Integer overflow or wraparound in Windows Kernel-Mode Drivers allows an authorized attacker to elevate privileges locally.

CVE-2026-97811 [HIGH] CWE-400 CVE-2026-97811: Double free in OpenSSH for Windows allows an authorized attacker to elevate privileges locally. Double free in OpenSSH for Windows allows an authorized attacker to elevate privileges locally.

CVE-2026-87712 [HIGH] CWE-416 CVE-2026-87712: Use after free in Windows Quality of Service (QoS) Packet Scheduler allows an authorized attacker to Use after free in Windows Quality of Service (QoS) Packet Scheduler allows an authorized attacker to elevate privileges locally.

CVE-2026-103568 [HIGH] CWE-122 CVE-2026-103568: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Credential Providers allows an authorized attacker to elevate privileges locally.

CVE-2026-85797 [HIGH] CWE-20 CVE-2026-85797: Out-of-bounds read in Windows GDI allows an unauthorized attacker to disclose information over a net Out-of-bounds read in Windows GDI allows an unauthorized attacker to disclose information over a network.

CVE-2026-83855 [HIGH] CWE-191 CVE-2026-83855: Integer underflow (wrap or wraparound) in Windows WLAN Service allows an unauthorized attacker to de Integer underflow (wrap or wraparound) in Windows WLAN Service allows an unauthorized attacker to deny service over a network.

CVE-2026-70104 [HIGH] CWE-822 CVE-2026-70104: Untrusted pointer dereference in Windows Win32 Kernel Subsystem allows an authorized attacker to ele Untrusted pointer dereference in Windows Win32 Kernel Subsystem allows an authorized attacker to elevate privileges locally.

CVE-2026-102202 [HIGH] CWE-59 CVE-2026-102202: Improper access control in Windows Container Isolation FS Filter Driver (unionfs.sys) allows an auth Improper access control in Windows Container Isolation FS Filter Driver (unionfs.sys) allows an authorized attacker to elevate privileges locally.

CVE-2026-49785 [HIGH] CWE-404 CVE-2026-49785: Improper resource shutdown or release in Windows UEFI allows an authorized attacker to bypass a secu Improper resource shutdown or release in Windows UEFI allows an authorized attacker to bypass a security feature locally.

CVE-2026-70015 [HIGH] CWE-122 CVE-2026-70015: 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 elevate privileges locally.

CVE-2026-69934 [HIGH] CWE-20 CVE-2026-69934: Integer overflow or wraparound in Windows Spaceport.sys allows an authorized attacker to elevate pri Integer overflow or wraparound in Windows Spaceport.sys allows an authorized attacker to elevate privileges locally.

CVE-2026-69957 [HIGH] CWE-126 CVE-2026-69957: Integer overflow or wraparound in Windows Overlay Filter allows an authorized attacker to elevate pr Integer overflow or wraparound in Windows Overlay Filter allows an authorized attacker to elevate privileges locally.

CVE-2026-69916 [HIGH] CWE-190 CVE-2026-69916: Integer overflow or wraparound in Windows NTFS allows an authorized attacker to elevate privileges l Integer overflow or wraparound in Windows NTFS allows an authorized attacker to elevate privileges locally.

CVE-2026-69952 [HIGH] CWE-125 CVE-2026-69952: Out-of-bounds read in Windows Overlay Filter allows an authorized attacker to elevate privileges loc Out-of-bounds read in Windows Overlay Filter allows an authorized attacker to elevate privileges locally.