Microsoft Windows 11 26H1 vulnerabilities

CVE-2026-100217 [HIGH] CWE-862 CVE-2026-100217: Improper privilege management in Windows Group Policy allows an authorized attacker to elevate privi Improper privilege management in Windows Group Policy allows an authorized attacker to elevate privileges locally.

CVE-2026-83791 [HIGH] CWE-283 CVE-2026-83791: Improper authorization in Windows Virtual Input allows an authorized attacker to elevate privileges Improper authorization in Windows Virtual Input allows an authorized attacker to elevate privileges locally.

CVE-2026-83792 [HIGH] CWE-863 CVE-2026-83792: Incorrect authorization in Windows Device Install Service allows an authorized attacker to elevate p Incorrect authorization in Windows Device Install Service allows an authorized attacker to elevate privileges locally.

CVE-2026-88070 [HIGH] CWE-125 CVE-2026-88070: Out-of-bounds read in Windows BitLocker allows an authorized attacker to elevate privileges locally. Out-of-bounds read in Windows BitLocker allows an authorized attacker to elevate privileges locally.

CVE-2026-32077 [HIGH] CWE-822 CVE-2026-32077: Untrusted pointer dereference in Windows Universal Plug and Play (UPnP) Device Host allows an author Untrusted pointer dereference in Windows Universal Plug and Play (UPnP) Device Host allows an authorized attacker to elevate privileges locally.

CVE-2026-85356 [HIGH] CWE-125 CVE-2026-85356: Out-of-bounds read in Windows Volume Manager Extension Driver allows an authorized attacker to eleva Out-of-bounds read in Windows Volume Manager Extension Driver allows an authorized attacker to elevate privileges locally.

CVE-2026-45656 [HIGH] CWE-693 CVE-2026-45656: Protection mechanism failure in Windows UEFI allows an authorized attacker to bypass a security feat Protection mechanism failure in Windows UEFI allows an authorized attacker to bypass a security feature locally.

CVE-2026-96918 [HIGH] CWE-863 CVE-2026-96918: Improper access control in Windows NTFS allows an authorized attacker to elevate privileges locally. Improper access control in Windows NTFS 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-2026-33828 [HIGH] CWE-501 CVE-2026-33828: Trust boundary violation in Windows Attestation allows an authorized attacker to elevate privileges Trust boundary violation in Windows Attestation allows an authorized attacker to elevate privileges locally.

CVE-2026-33098 [HIGH] CWE-416 CVE-2026-33098: Use after free in Windows Container Isolation FS Filter Driver allows an authorized attacker to elev Use after free in Windows Container Isolation FS Filter Driver 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-2026-69907 [HIGH] CWE-280 CVE-2026-69907: Improper handling of insufficient permissions or privileges in Windows Enterprise App Management all Improper handling of insufficient permissions or privileges in Windows Enterprise App Management allows an authorized attacker to elevate privileges locally.

CVE-2026-69377 [HIGH] CWE-862 CVE-2026-69377: Missing authorization in Windows Modern Device Management (MDM) allows an authorized attacker to ele Missing authorization in Windows Modern Device Management (MDM) allows an authorized attacker to elevate privileges locally.

CVE-2026-66804 [HIGH] CWE-284 CVE-2026-66804: Improper access control in Windows Cross Device Service allows an authorized attacker to elevate pri Improper access control in Windows Cross Device Service allows an authorized attacker to elevate privileges locally.

CVE-2026-50391 [HIGH] CWE-269 CVE-2026-50391: Improper privilege management in Windows Group Policy allows an authorized attacker to elevate privi Improper privilege management in Windows Group Policy allows an authorized attacker to elevate privileges locally.