cbcvebase.

Microsoft Windows 11 Version 26H1 vulnerabilities

741 known vulnerabilities affecting microsoft/windows_11_version_26h1.

Total CVEs
741
CISA KEV
6
actively exploited
Public exploits
6
Exploited in wild
9
Severity breakdown
CRITICAL23HIGH567MEDIUM146LOW5

Vulnerabilities

Page 17 of 38
CVE-2026-45600P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.22692026-06-09
CVE-2026-45600 [HIGH] CWE-843 CVE-2026-45600: Access of resource using incompatible type ('type confusion') in Windows Kernel-Mode Drivers allows Access of resource using incompatible type ('type confusion') in Windows Kernel-Mode Drivers allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-42910P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.22692026-06-09
CVE-2026-42910 [HIGH] CWE-787 CVE-2026-42910: Out-of-bounds write in Windows Hotpatch Monitoring Service allows an authorized attacker to elevate Out-of-bounds write in Windows Hotpatch Monitoring Service allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-50391P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.25252026-07-14
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.
nvd
CVE-2026-50373P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.25252026-07-14
CVE-2026-50373 [HIGH] CWE-284 CVE-2026-50373: Improper access control in Microsoft Windows Search Component allows an authorized attacker to eleva Improper access control in Microsoft Windows Search Component allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-50346P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.25252026-07-14
CVE-2026-50346 [HIGH] CWE-285 CVE-2026-50346: Improper authorization in RPC Runtime allows an authorized attacker to elevate privileges locally. Improper authorization in RPC Runtime allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-42982P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.25252026-07-14
CVE-2026-42982 [HIGH] CWE-1288 CVE-2026-42982: Improper validation of consistency within input in Windows Secure Kernel Mode allows an authorized a Improper validation of consistency within input in Windows Secure Kernel Mode allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-44809P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.22692026-06-09
CVE-2026-44809 [HIGH] CWE-416 CVE-2026-44809: Use after free in Windows Common Log File System Driver allows an authorized attacker to elevate pri Use after free in Windows Common Log File System Driver allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-50406P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.25252026-07-14
CVE-2026-50406 [HIGH] CWE-416 CVE-2026-50406: Use after free in Windows Backup Engine allows an authorized attacker to elevate privileges locally. Use after free in Windows Backup Engine allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-50674P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.25252026-07-14
CVE-2026-50674 [HIGH] CWE-416 CVE-2026-50674: Use after free in Windows USB Print Driver allows an authorized attacker to elevate privileges local Use after free in Windows USB Print Driver allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-50359P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.25252026-07-14
CVE-2026-50359 [HIGH] CWE-416 CVE-2026-50359: Use after free in Microsoft XML Core Services allows an authorized attacker to elevate privileges lo Use after free in Microsoft XML Core Services allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-57093P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.25252026-07-14
CVE-2026-57093 [HIGH] CWE-416 CVE-2026-57093: Use after free in Windows Ancillary Function Driver for WinSock allows an authorized attacker to ele Use after free in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-32078P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.18362026-04-14
CVE-2026-32078 [HIGH] CWE-416 CVE-2026-32078: Use after free in Windows Projected File System allows an authorized attacker to elevate privileges Use after free in Windows Projected File System allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-50293P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.25252026-07-14
CVE-2026-50293 [HIGH] CWE-416 CVE-2026-50293: Use after free in Windows Internal Task Bar allows an authorized attacker to elevate privileges loca Use after free in Windows Internal Task Bar allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-32074P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.18362026-04-14
CVE-2026-32074 [HIGH] CWE-415 CVE-2026-32074: Double free in Windows Projected File System allows an authorized attacker to elevate privileges loc Double free in Windows Projected File System allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-32069P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.18362026-04-14
CVE-2026-32069 [HIGH] CWE-415 CVE-2026-32069: Double free in Windows Projected File System allows an authorized attacker to elevate privileges loc Double free in Windows Projected File System allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-42978P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.22692026-06-09
CVE-2026-42978 [HIGH] CWE-362 CVE-2026-42978: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Push Notifications allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-32089P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.18362026-04-14
CVE-2026-32089 [HIGH] CWE-362 CVE-2026-32089: Use after free in Windows Speech Brokered Api allows an authorized attacker to elevate privileges lo Use after free in Windows Speech Brokered Api allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-50311P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.25252026-07-14
CVE-2026-50311 [HIGH] CWE-284 CVE-2026-50311: Improper access control in Windows Server allows an authorized attacker to elevate privileges locall Improper access control in Windows Server allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-50425P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.25252026-07-14
CVE-2026-50425 [HIGH] CWE-416 CVE-2026-50425: Use after free in Windows Internal System User Profile allows an authorized attacker to elevate priv Use after free in Windows Internal System User Profile allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-54109P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.25252026-07-14
CVE-2026-54109 [HIGH] CWE-122 CVE-2026-54109: Integer overflow or wraparound in Windows Resilient File System (ReFS) allows an authorized attacker Integer overflow or wraparound in Windows Resilient File System (ReFS) allows an authorized attacker to execute code locally.
nvd
← Previous17 / 38Next →