Microsoft Windows 11 Version 26H2 vulnerabilities
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Published CVEs affecting Microsoft Windows 11 Version 26H2: 1007 record(s), with affected versions and fixes.
CVE-2026-69766
High · 7.0
CWE-362 Oct 13, 2026
Windows Storage Elevation of Privilege Vulnerability
Use after free in Windows Storage allows an authorized attacker to elevate privileges locally.
CVE-2026-69763
High · 7.0
CWE-362 Oct 13, 2026
Windows Storage Elevation of Privilege Vulnerability
Use after free in Windows Storage allows an authorized attacker to elevate privileges locally.
CVE-2026-69743
High · 7.0
CWE-416 Oct 13, 2026
Windows Program Compatibility Assistant Service Elevation of Privilege Vulnerability
Use after free in Windows Program Compatibility Assistant Service allows an authorized attacker to elevate privileges locally.
CVE-2026-69736
High · 7.0
CWE-362 Oct 13, 2026
Windows Credential Manager Elevation of Privilege Vulnerability
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Credential Manager allows an authorized attacker to elevate privileges locally.
CVE-2026-69733
High · 7.8
CWE-426 Oct 13, 2026
Windows Update Elevation of Privilege Vulnerability
Untrusted search path in Windows Update allows an authorized attacker to elevate privileges locally.
CVE-2026-69721
Medium · 5.5
CWE-125 Oct 13, 2026
Windows iSCSI Information Disclosure Vulnerability
Out-of-bounds read in Windows iSCSI allows an authorized attacker to disclose information locally.
CVE-2026-69718
High · 7.8
CWE-77 Oct 13, 2026
Windows Update Elevation of Privilege Vulnerability
Improper neutralization of special elements used in a command ('command injection') in Windows Update allows an authorized attacker to elevate privileges locally.
CVE-2026-69705
Critical · 9.8
CWE-787 Oct 13, 2026
Windows iSCSI Remote Code Execution Vulnerability
Out-of-bounds write in Windows iSCSI allows an unauthorized attacker to execute code over a network.
CVE-2026-69673
High · 7.8
CWE-59 Oct 13, 2026
Windows Update Elevation of Privilege Vulnerability
Improper link resolution before file access ('link following') in Windows Update allows an authorized attacker to elevate privileges locally.
CVE-2026-69650
High · 7.8
CWE-347 Oct 13, 2026
Windows Key Distribution Center Elevation of Privilege Vulnerability
Improper verification of cryptographic signature in Windows Key Distribution Center allows an authorized attacker to elevate privileges locally.
CVE-2026-69644
Medium · 5.5
CWE-497 Oct 13, 2026
Windows iSCSI Information Disclosure Vulnerability
Exposure of sensitive system information to an unauthorized control sphere in Windows iSCSI allows an authorized attacker to disclose information locally.
CVE-2026-69640
Medium · 5.3
CWE-863 Oct 13, 2026
Windows Key Distribution Center Security Feature Bypass Vulnerability
Incorrect authorization in Windows Key Distribution Center allows an authorized attacker to bypass a security feature over a network.
CVE-2026-69639
Critical · 9.8
CWE-122 Oct 13, 2026
Windows libarchive Remote Code Execution Vulnerability
Heap-based buffer overflow in Windows Libarchive allows an unauthorized attacker to execute code over a network.
CVE-2026-69635
Medium · 6.6
CWE-122 Oct 13, 2026
Windows Installer Elevation of Privilege Vulnerability
Heap-based buffer overflow in Windows Installer allows an authorized attacker to elevate privileges with a physical attack.
CVE-2026-69634
Critical · 9.8
CWE-122 Oct 13, 2026
Windows iSCSI Remote Code Execution Vulnerability
Heap-based buffer overflow in Windows iSCSI allows an unauthorized attacker to execute code over a network.
CVE-2026-69633
High · 7.8
CWE-122 Oct 13, 2026
Windows Update Elevation of Privilege Vulnerability
Heap-based buffer overflow in Windows Update allows an authorized attacker to elevate privileges locally.
CVE-2026-69596
High · 7.0
CWE-416 Oct 13, 2026
Windows Program Compatibility Assistant Service Elevation of Privilege Vulnerability
Use after free in Windows Program Compatibility Assistant Service allows an authorized attacker to elevate privileges locally.
CVE-2026-69506
Medium · 4.7
CWE-125 Oct 13, 2026
Windows Key Storage Provider Information Disclosure Vulnerability
Out-of-bounds read in Windows Key Storage Provider allows an authorized attacker to disclose information locally.
CVE-2026-69471
High · 7.8
CWE-122 Oct 13, 2026
Windows Installer Elevation of Privilege Vulnerability
Heap-based buffer overflow in Windows Installer allows an authorized attacker to elevate privileges locally.
CVE-2026-69452
High · 7.1
CWE-416 Oct 13, 2026
Windows Enterprise App Management Elevation of Privilege Vulnerability
Use after free in Windows Enterprise App Management allows an authorized attacker to elevate privileges over a network.
CVE-2026-69387
High · 7.0
CWE-416 Oct 13, 2026
Windows Error Reporting Elevation of Privilege Vulnerability
Use after free in Windows Error Reporting allows an authorized attacker to elevate privileges locally.
CVE-2026-69326
High · 8.8
CWE-122 Oct 13, 2026
Graphic Fonts Remote Code Execution Vulnerability
Heap-based buffer overflow in Graphic Fonts allows an unauthorized attacker to execute code over a network.
CVE-2026-68836
High · 7.8
CWE-122 Oct 13, 2026
Windows kernel32.dll Elevation of Privilege Vulnerability
Heap-based buffer overflow in Windows kernel32.dll allows an authorized attacker to elevate privileges locally.
CVE-2026-62879
Medium · 5.5
CWE-306 Oct 13, 2026
Windows SmartScreen Tampering Vulnerability
Missing authentication for critical function in Windows SmartScreen allows an authorized attacker to perform tampering locally.
CVE-2026-62687
Medium · 5.5
CWE-59 Oct 13, 2026
Windows Backup Engine Information Disclosure Vulnerability
Improper link resolution before file access ('link following') in Windows Backup Engine allows an authorized attacker to disclose information locally.