Microsoft Windows 11 Version 26H1 vulnerabilities
2,567 known vulnerabilities affecting microsoft/windows_11_version_26h1.
Total CVEs
2,567
CISA KEV
10
actively exploited
Public exploits
6
Exploited in wild
13
Severity breakdown
CRITICAL96HIGH1900MEDIUM566LOW5
Vulnerabilities
Page 51 of 129
CVE-2026-58633P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.25252026-07-14
CVE-2026-58633 [HIGH] CWE-416 CVE-2026-58633: Use after free in Desktop Window Manager allows an authorized attacker to elevate privileges locally
Use after free in Desktop Window Manager allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-50486P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.25252026-07-14
CVE-2026-50486 [HIGH] CWE-416 CVE-2026-50486: Use after free in Windows Runtime allows an authorized attacker to elevate privileges locally.
Use after free in Windows Runtime allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-50466P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.25252026-07-14
CVE-2026-50466 [HIGH] CWE-416 CVE-2026-50466: Use after free in Windows Brokering File System allows an authorized attacker to elevate privileges
Use after free in Windows Brokering File System allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-49166P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.25252026-07-14
CVE-2026-49166 [HIGH] CWE-416 CVE-2026-49166: Use after free in Microsoft Printer Drivers allows an authorized attacker to elevate privileges loca
Use after free in Microsoft Printer Drivers allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-58537P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.25252026-07-14
CVE-2026-58537 [HIGH] CWE-416 CVE-2026-58537: Use after free in Microsoft NAT Helper Components (ipnathlp.dll) allows an authorized attacker to el
Use after free in Microsoft NAT Helper Components (ipnathlp.dll) allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-58634P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.25252026-07-14
CVE-2026-58634 [HIGH] CWE-416 CVE-2026-58634: Use after free in Desktop Window Manager allows an authorized attacker to elevate privileges locally
Use after free in Desktop Window Manager allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-58541P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.25252026-07-14
CVE-2026-58541 [HIGH] CWE-843 CVE-2026-58541: Access of resource using incompatible type ('type confusion') in Windows DWM allows an authorized at
Access of resource using incompatible type ('type confusion') in Windows DWM allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-50493P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.25252026-07-14
CVE-2026-50493 [HIGH] CWE-416 CVE-2026-50493: Use after free in Windows Graphics Kernel allows an authorized attacker to elevate privileges locall
Use after free in Windows Graphics Kernel allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-50413P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.25252026-07-14
CVE-2026-50413 [HIGH] CWE-416 CVE-2026-50413: Use after free in Windows Runtime allows an authorized attacker to elevate privileges locally.
Use after free in Windows Runtime allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-50433P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.25252026-07-14
CVE-2026-50433 [HIGH] CWE-416 CVE-2026-50433: Use after free in Windows Media allows an authorized attacker to elevate privileges locally.
Use after free in Windows Media allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-42916P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.22692026-06-09
CVE-2026-42916 [HIGH] CWE-190 CVE-2026-42916: Integer overflow or wraparound in Windows NT OS Kernel allows an authorized attacker to elevate priv
Integer overflow or wraparound in Windows NT OS Kernel allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-83756P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.32312026-10-13
CVE-2026-83756 [HIGH] CWE-416 CVE-2026-83756: Use after free in Windows Win32 Kernel Subsystem allows an authorized attacker to elevate privileges
Use after free in Windows Win32 Kernel Subsystem allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-88074P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.32312026-10-13
CVE-2026-88074 [HIGH] CWE-190 CVE-2026-88074: Integer overflow or wraparound in Windows Virtualization-Based Security (VBS) Enclave allows an auth
Integer overflow or wraparound in Windows Virtualization-Based Security (VBS) Enclave allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-83586P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.32312026-10-13
CVE-2026-83586 [HIGH] CWE-1390 CVE-2026-83586: Weak authentication in Windows Resilient File System (ReFS) Deduplication Service allows an authoriz
Weak authentication in Windows Resilient File System (ReFS) Deduplication Service allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-88135P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.32312026-10-13
CVE-2026-88135 [HIGH] CWE-862 CVE-2026-88135: Improper access control in WebDAV allows an authorized attacker to elevate privileges locally.
Improper access control in WebDAV allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-41088P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.21132026-05-12
CVE-2026-41088 [HIGH] CWE-73 CVE-2026-41088: Access of resource using incompatible type ('type confusion') in Windows Ancillary Function Driver f
Access of resource using incompatible type ('type confusion') in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-34344P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.21132026-05-12
CVE-2026-34344 [HIGH] CWE-843 CVE-2026-34344: Access of resource using incompatible type ('type confusion') in Windows Ancillary Function Driver f
Access of resource using incompatible type ('type confusion') in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-85795P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.32312026-10-13
CVE-2026-85795 [HIGH] CWE-416 CVE-2026-85795: Use after free in Windows Text Services Framework allows an authorized attacker to elevate privilege
Use after free in Windows Text Services Framework allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-88100P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.32312026-10-13
CVE-2026-88100 [HIGH] CWE-416 CVE-2026-88100: Use after free in Windows Storage Spaces Controller allows an authorized attacker to elevate privile
Use after free in Windows Storage Spaces Controller allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-85375P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.32312026-10-13
CVE-2026-85375 [HIGH] CWE-416 CVE-2026-85375: Use after free in Windows Universal Plug and Play (UPnP) Device Host allows an authorized attacker t
Use after free in Windows Universal Plug and Play (UPnP) Device Host allows an authorized attacker to elevate privileges locally.
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