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Microsoft Windows 11 26H1 vulnerabilities

2,496 known vulnerabilities affecting microsoft/windows_11_26h1.

Total CVEs
2,496
CISA KEV
5
actively exploited
Public exploits
2
Exploited in wild
7
Severity breakdown
CRITICAL92HIGH1847MEDIUM553LOW4

Vulnerabilities

Page 78 of 125
CVE-2026-70253P3HIGHCVSS 7.0fixed in 10.0.28000.32312026-10-13
CVE-2026-70253 [HIGH] CWE-416 CVE-2026-70253: 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.
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CVE-2026-70176P3HIGHCVSS 7.0fixed in 10.0.28000.32312026-10-13
CVE-2026-70176 [HIGH] CWE-416 CVE-2026-70176: 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.
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CVE-2026-70237P3HIGHCVSS 7.0fixed in 10.0.28000.32312026-10-13
CVE-2026-70237 [HIGH] CWE-416 CVE-2026-70237: 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.
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CVE-2026-23667P3HIGHCVSS 7.0fixed in 10.0.28000.17192026-03-10
CVE-2026-23667 [HIGH] CWE-416 CVE-2026-23667: Use after free in Broadcast DVR allows an authorized attacker to elevate privileges locally. Use after free in Broadcast DVR allows an authorized attacker to elevate privileges locally.
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CVE-2026-100200P3HIGHCVSS 7.0fixed in 10.0.28000.32312026-10-13
CVE-2026-100200 [HIGH] CWE-416 CVE-2026-100200: Use after free in Windows Update Service allows an authorized attacker to elevate privileges locally Use after free in Windows Update Service allows an authorized attacker to elevate privileges locally.
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CVE-2026-83916P3HIGHCVSS 7.0fixed in 10.0.28000.32312026-10-13
CVE-2026-83916 [HIGH] CWE-415 CVE-2026-83916: Double free in Windows Error Reporting allows an authorized attacker to execute code locally. Double free in Windows Error Reporting allows an authorized attacker to execute code locally.
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CVE-2026-83901P3HIGHCVSS 7.0fixed in 10.0.28000.32312026-10-13
CVE-2026-83901 [HIGH] CWE-416 CVE-2026-83901: 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.
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CVE-2026-70273P3HIGHCVSS 7.0fixed in 10.0.28000.32312026-10-13
CVE-2026-70273 [HIGH] CWE-416 CVE-2026-70273: 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.
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CVE-2026-70236P3HIGHCVSS 7.0fixed in 10.0.28000.32312026-10-13
CVE-2026-70236 [HIGH] CWE-416 CVE-2026-70236: 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.
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CVE-2026-70223P3HIGHCVSS 7.0fixed in 10.0.28000.32312026-10-13
CVE-2026-70223 [HIGH] CWE-416 CVE-2026-70223: Use after free in Windows Console Driver allows an authorized attacker to elevate privileges locally Use after free in Windows Console Driver allows an authorized attacker to elevate privileges locally.
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CVE-2026-70164P3HIGHCVSS 7.0fixed in 10.0.28000.32312026-10-13
CVE-2026-70164 [HIGH] CWE-416 CVE-2026-70164: Use after free in Windows TCP/IP allows an authorized attacker to elevate privileges locally. Use after free in Windows TCP/IP allows an authorized attacker to elevate privileges locally.
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CVE-2026-70026P3HIGHCVSS 7.0fixed in 10.0.28000.32312026-10-13
CVE-2026-70026 [HIGH] CWE-416 CVE-2026-70026: Use after free in Windows Secure Kernel Mode allows an authorized attacker to elevate privileges loc Use after free in Windows Secure Kernel Mode allows an authorized attacker to elevate privileges locally.
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CVE-2026-70045P3HIGHCVSS 7.0fixed in 10.0.28000.32312026-10-13
CVE-2026-70045 [HIGH] CWE-416 CVE-2026-70045: Use after free in Windows Work Folders allows an authorized attacker to elevate privileges locally. Use after free in Windows Work Folders allows an authorized attacker to elevate privileges locally.
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CVE-2026-70056P3HIGHCVSS 7.0fixed in 10.0.28000.32312026-10-13
CVE-2026-70056 [HIGH] CWE-416 CVE-2026-70056: Use after free in Windows Update Service allows an authorized attacker to elevate privileges locally Use after free in Windows Update Service allows an authorized attacker to elevate privileges locally.
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CVE-2026-83900P3HIGHCVSS 7.0fixed in 10.0.28000.32312026-10-13
CVE-2026-83900 [HIGH] CWE-416 CVE-2026-83900: Use after free in Windows Bind Filter Driver allows an authorized attacker to elevate privileges loc Use after free in Windows Bind Filter Driver allows an authorized attacker to elevate privileges locally.
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CVE-2026-70168P3HIGHCVSS 7.0fixed in 10.0.28000.32312026-10-13
CVE-2026-70168 [HIGH] CWE-416 CVE-2026-70168: 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.
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CVE-2026-70209P3HIGHCVSS 7.0fixed in 10.0.28000.32312026-10-13
CVE-2026-70209 [HIGH] CWE-416 CVE-2026-70209: 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.
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CVE-2026-70134P3HIGHCVSS 7.0fixed in 10.0.28000.32312026-10-13
CVE-2026-70134 [HIGH] CWE-416 CVE-2026-70134: Use after free in Windows Event Tracing allows an authorized attacker to elevate privileges locally. Use after free in Windows Event Tracing allows an authorized attacker to elevate privileges locally.
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CVE-2026-70021P3HIGHCVSS 7.0fixed in 10.0.28000.32312026-10-13
CVE-2026-70021 [HIGH] CWE-416 CVE-2026-70021: Use after free in Windows Direct Composition allows an authorized attacker to elevate privileges loc Use after free in Windows Direct Composition allows an authorized attacker to elevate privileges locally.
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CVE-2026-70067P3HIGHCVSS 7.0fixed in 10.0.28000.32312026-10-13
CVE-2026-70067 [HIGH] CWE-416 CVE-2026-70067: 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.
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Microsoft Windows 11 26H1 vulnerabilities | cvebase