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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 77 of 129
CVE-2026-69305P3HIGHCVSS 7.1≥ 10.0.28000.0, < 10.0.28000.29542026-09-08
CVE-2026-69305 [HIGH] CWE-416 CVE-2026-69305: Use after free in Microsoft Windows Search Component allows an authorized attacker to elevate privil Use after free in Microsoft Windows Search Component allows an authorized attacker to elevate privileges over a network.
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CVE-2026-21253P3HIGHCVSS 7.0≥ 10.0.28000.0, < 10.0.28000.15752026-02-10
CVE-2026-21253 [HIGH] CWE-416 CVE-2026-21253: Use after free in Mailslot File System allows an authorized attacker to elevate privileges locally. Use after free in Mailslot File System allows an authorized attacker to elevate privileges locally.
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CVE-2026-21508P3HIGHCVSS 7.0≥ 10.0.28000.0, < 10.0.28000.15752026-02-10
CVE-2026-21508 [HIGH] CWE-287 CVE-2026-21508: Improper authentication in Windows Storage allows an authorized attacker to elevate privileges local Improper authentication in Windows Storage allows an authorized attacker to elevate privileges locally.
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CVE-2026-70198P3HIGHCVSS 7.0≥ 10.0.28000.0, < 10.0.28000.32312026-10-13
CVE-2026-70198 [HIGH] CWE-416 CVE-2026-70198: Use after free in Windows Push Notifications allows an authorized attacker to elevate privileges loc Use after free in Windows Push Notifications allows an authorized attacker to elevate privileges locally.
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CVE-2026-83566P3HIGHCVSS 7.0≥ 10.0.28000.0, < 10.0.28000.32312026-10-13
CVE-2026-83566 [HIGH] CWE-416 CVE-2026-83566: Use after free in Windows Win32K - ICOMP allows an authorized attacker to elevate privileges locally Use after free in Windows Win32K - ICOMP allows an authorized attacker to elevate privileges locally.
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CVE-2026-83675P3HIGHCVSS 7.0≥ 10.0.28000.0, < 10.0.28000.32312026-10-13
CVE-2026-83675 [HIGH] CWE-416 CVE-2026-83675: Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally. Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally.
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CVE-2026-70241P3HIGHCVSS 7.0≥ 10.0.28000.0, < 10.0.28000.32312026-10-13
CVE-2026-70241 [HIGH] CWE-416 CVE-2026-70241: Use after free in Windows Kerberos allows an authorized attacker to elevate privileges locally. Use after free in Windows Kerberos allows an authorized attacker to elevate privileges locally.
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CVE-2026-83717P3HIGHCVSS 7.0≥ 10.0.28000.0, < 10.0.28000.32312026-10-13
CVE-2026-83717 [HIGH] CWE-416 CVE-2026-83717: Use after free in Windows Installer allows an authorized attacker to elevate privileges locally. Use after free in Windows Installer allows an authorized attacker to elevate privileges locally.
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CVE-2026-83924P3HIGHCVSS 7.0≥ 10.0.28000.0, < 10.0.28000.32312026-10-13
CVE-2026-83924 [HIGH] CWE-416 CVE-2026-83924: Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally. Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally.
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CVE-2026-69915P3HIGHCVSS 7.0≥ 10.0.28000.0, < 10.0.28000.32312026-10-13
CVE-2026-69915 [HIGH] CWE-416 CVE-2026-69915: Use after free in Windows NTFS allows an authorized attacker to elevate privileges locally. Use after free in Windows NTFS allows an authorized attacker to elevate privileges locally.
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CVE-2026-70160P3HIGHCVSS 7.0≥ 10.0.28000.0, < 10.0.28000.32312026-10-13
CVE-2026-70160 [HIGH] CWE-416 CVE-2026-70160: Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally. Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally.
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CVE-2026-25171P3HIGHCVSS 7.0≥ 10.0.28000.0, < 10.0.28000.17192026-03-10
CVE-2026-25171 [HIGH] CWE-416 CVE-2026-25171: Use after free in Windows Authentication Methods allows an authorized attacker to elevate privileges Use after free in Windows Authentication Methods allows an authorized attacker to elevate privileges locally.
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CVE-2026-72963P3HIGHCVSS 7.0≥ 10.0.28000.0, < 10.0.28000.29542026-09-08
CVE-2026-72963 [HIGH] CWE-416 CVE-2026-72963: Use after free in Windows Modern Execution Server allows an authorized attacker to elevate privilege Use after free in Windows Modern Execution Server allows an authorized attacker to elevate privileges locally.
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CVE-2026-69281P3HIGHCVSS 7.0≥ 10.0.28000.0, < 10.0.28000.29542026-09-08
CVE-2026-69281 [HIGH] CWE-416 CVE-2026-69281: Use after free in Windows License Manager allows an authorized attacker to elevate privileges locall Use after free in Windows License Manager allows an authorized attacker to elevate privileges locally.
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CVE-2026-69331P3HIGHCVSS 7.0≥ 10.0.28000.0, < 10.0.28000.29542026-09-08
CVE-2026-69331 [HIGH] CWE-416 CVE-2026-69331: Use after free in Windows Remote Access Connection Manager allows an authorized attacker to elevate Use after free in Windows Remote Access Connection Manager allows an authorized attacker to elevate privileges locally.
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CVE-2026-71342P3HIGHCVSS 7.0≥ 10.0.28000.0, < 10.0.28000.29542026-09-08
CVE-2026-71342 [HIGH] CWE-416 CVE-2026-71342: Use after free in Windows Remote Access Connection Manager allows an authorized attacker to elevate Use after free in Windows Remote Access Connection Manager allows an authorized attacker to elevate privileges locally.
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CVE-2026-71333P3HIGHCVSS 7.0≥ 10.0.28000.0, < 10.0.28000.29542026-09-08
CVE-2026-71333 [HIGH] CWE-416 CVE-2026-71333: Use after free in Windows Remote Access Connection Manager allows an authorized attacker to elevate Use after free in Windows Remote Access Connection Manager allows an authorized attacker to elevate privileges locally.
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CVE-2026-85360P3HIGHCVSS 7.0≥ 10.0.28000.0, < 10.0.28000.29542026-09-08
CVE-2026-85360 [HIGH] CWE-416 CVE-2026-85360: Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally. Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally.
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CVE-2026-69473P3HIGHCVSS 7.0≥ 10.0.28000.0, < 10.0.28000.29542026-09-08
CVE-2026-69473 [HIGH] CWE-416 CVE-2026-69473: Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally. Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally.
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CVE-2026-32087P3HIGHCVSS 7.0≥ 10.0.28000.0, < 10.0.28000.18362026-04-14
CVE-2026-32087 [HIGH] CWE-122 CVE-2026-32087: Heap-based buffer overflow in Function Discovery Service (fdwsd.dll) allows an authorized attacker t Heap-based buffer overflow in Function Discovery Service (fdwsd.dll) allows an authorized attacker to elevate privileges locally.
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Microsoft Windows 11 Version 26H1 vulnerabilities | cvebase