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 71 of 129
CVE-2026-88126P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.32312026-10-13
CVE-2026-88126 [HIGH] CWE-822 CVE-2026-88126: Untrusted pointer dereference in WebDAV allows an authorized attacker to elevate privileges locally.
Untrusted pointer dereference in WebDAV allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-49790P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.25252026-07-14
CVE-2026-49790 [HIGH] CWE-122 CVE-2026-49790: Windows Universal Disk Format File System Driver (UDFS) Elevation of Privilege Vulnerability
Windows Universal Disk Format File System Driver (UDFS) Elevation of Privilege Vulnerability
nvd
CVE-2026-25174P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.17192026-03-10
CVE-2026-25174 [HIGH] CWE-125 CVE-2026-25174: Out-of-bounds read in Windows Extensible File Allocation allows an authorized attacker to elevate pr
Out-of-bounds read in Windows Extensible File Allocation allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-96933P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.32312026-10-13
CVE-2026-96933 [HIGH] CWE-822 CVE-2026-96933: Untrusted pointer dereference in Windows COM+ Event System Service allows an authorized attacker to
Untrusted pointer dereference in Windows COM+ Event System Service allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-96847P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.32312026-10-13
CVE-2026-96847 [HIGH] CWE-822 CVE-2026-96847: Untrusted pointer dereference in WebDAV allows an authorized attacker to elevate privileges locally.
Untrusted pointer dereference in WebDAV allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-83826P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.32312026-10-13
CVE-2026-83826 [HIGH] CWE-822 CVE-2026-83826: Untrusted pointer dereference in Windows Error Reporting allows an authorized attacker to elevate pr
Untrusted pointer dereference in Windows Error Reporting allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-40404P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.22692026-06-09
CVE-2026-40404 [HIGH] CWE-122 CVE-2026-40404: Windows Universal Disk Format File System Driver (UDFS) Elevation of Privilege Vulnerability
Windows Universal Disk Format File System Driver (UDFS) Elevation of Privilege Vulnerability
nvd
CVE-2026-50441P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.25252026-07-14
CVE-2026-50441 [HIGH] CWE-822 CVE-2026-50441: Untrusted pointer dereference in Windows Resilient File System (ReFS) allows an authorized attacker
Untrusted pointer dereference in Windows Resilient File System (ReFS) allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-32222P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.18362026-04-14
CVE-2026-32222 [HIGH] CWE-822 CVE-2026-32222: Untrusted pointer dereference in Windows Win32K - ICOMP allows an authorized attacker to elevate pri
Untrusted pointer dereference in Windows Win32K - ICOMP allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-96953P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.32312026-10-13
CVE-2026-96953 [HIGH] CWE-476 CVE-2026-96953: Null pointer dereference in Windows Universal Disk Format File System Driver (UDFS) allows an author
Null pointer dereference in Windows Universal Disk Format File System Driver (UDFS) allows an authorized attacker to execute code locally.
nvd
CVE-2026-32076P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.18362026-04-14
CVE-2026-32076 [HIGH] CWE-125 CVE-2026-32076: Out-of-bounds read in Windows Storage Spaces Controller allows an authorized attacker to elevate pri
Out-of-bounds read in Windows Storage Spaces Controller allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-85858P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.32312026-10-13
CVE-2026-85858 [HIGH] CWE-125 CVE-2026-85858: Out-of-bounds read in Windows Win32 Kernel Subsystem allows an authorized attacker to elevate privil
Out-of-bounds read in Windows Win32 Kernel Subsystem allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-34336P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.21132026-05-12
CVE-2026-34336 [HIGH] CWE-122 CVE-2026-34336: Integer overflow or wraparound in Windows DWM Core Library allows an authorized attacker to elevate
Integer overflow or wraparound in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-96306P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.32312026-10-13
CVE-2026-96306 [HIGH] CWE-125 CVE-2026-96306: Out-of-bounds read in Windows Sysmain Service allows an authorized attacker to elevate privileges lo
Out-of-bounds read in Windows Sysmain Service allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-26184P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.18362026-04-14
CVE-2026-26184 [HIGH] CWE-126 CVE-2026-26184: Buffer over-read in Windows Projected File System allows an authorized attacker to elevate privilege
Buffer over-read in Windows Projected File System allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-50673P3HIGHCVSS 7.8≥ 10.0.28000.0, < 10.0.28000.25252026-07-14
CVE-2026-50673 [HIGH] CWE-367 CVE-2026-50673: Null pointer dereference in Windows Kernel allows an authorized attacker to elevate privileges local
Null pointer dereference in Windows Kernel allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-21247P3HIGHCVSS 7.3≥ 10.0.28000.0, < 10.0.28000.15752026-02-10
CVE-2026-21247 [HIGH] CWE-20 CVE-2026-21247: Improper input validation in Windows Hyper-V allows an authorized attacker to execute code locally.
Improper input validation in Windows Hyper-V allows an authorized attacker to execute code locally.
nvd
CVE-2026-68846P3HIGHCVSS 7.1≥ 10.0.28000.0, < 10.0.28000.29542026-09-08
CVE-2026-68846 [HIGH] CWE-416 CVE-2026-68846: Use after free in Windows Kernel allows an authorized attacker to elevate privileges over a network.
Use after free in Windows Kernel allows an authorized attacker to elevate privileges over a network.
nvd
CVE-2026-69336P3HIGHCVSS 7.1≥ 10.0.28000.0, < 10.0.28000.29542026-09-08
CVE-2026-69336 [HIGH] CWE-122 CVE-2026-69336: Heap-based buffer overflow in Microsoft Standard XPS allows an authorized attacker to elevate privil
Heap-based buffer overflow in Microsoft Standard XPS allows an authorized attacker to elevate privileges over a network.
nvd
CVE-2026-68889P3HIGHCVSS 7.1≥ 10.0.28000.0, < 10.0.28000.29542026-09-08
CVE-2026-68889 [HIGH] CWE-122 CVE-2026-68889: Heap-based buffer overflow in Microsoft Standard XPS allows an authorized attacker to elevate privil
Heap-based buffer overflow in Microsoft Standard XPS allows an authorized attacker to elevate privileges over a network.
nvd