cbcvebase.

Microsoft Windows 11 26H1 vulnerabilities

2,305 known vulnerabilities affecting microsoft/windows_11_26h1.

Total CVEs
2,305
CISA KEV
5
actively exploited
Public exploits
2
Exploited in wild
7
Severity breakdown
CRITICAL85HIGH1712MEDIUM504LOW4

Vulnerabilities

Page 40 of 116
CVE-2026-62711P3HIGHCVSS 7.8fixed in 10.0.28000.27042026-08-11
CVE-2026-62711 [HIGH] CWE-416 CVE-2026-62711: Use after free in Windows Win32K allows an authorized attacker to elevate privileges locally. Use after free in Windows Win32K allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-50436P3HIGHCVSS 7.8fixed in 10.0.28000.2269fixed in 10.0.28000.25252026-07-14
CVE-2026-50436 [HIGH] CWE-416 CVE-2026-50436: 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.
nvd
CVE-2026-54114P3HIGHCVSS 7.8fixed in 10.0.28000.2269fixed in 10.0.28000.25252026-07-14
CVE-2026-54114 [HIGH] CWE-416 CVE-2026-54114: Use after free in Windows Win32K allows an authorized attacker to elevate privileges locally. Use after free in Windows Win32K allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-50478P3HIGHCVSS 7.8fixed in 10.0.28000.2269fixed in 10.0.28000.25252026-07-14
CVE-2026-50478 [HIGH] CWE-416 CVE-2026-50478: 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.
nvd
CVE-2026-50326P3HIGHCVSS 7.8fixed in 10.0.28000.2269fixed in 10.0.28000.25252026-07-14
CVE-2026-50326 [HIGH] CWE-416 CVE-2026-50326: Use after free in Windows Unified Consent System allows an authorized attacker to elevate privileges Use after free in Windows Unified Consent System allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-50329P3HIGHCVSS 7.8fixed in 10.0.28000.2269fixed in 10.0.28000.25252026-07-14
CVE-2026-50329 [HIGH] CWE-416 CVE-2026-50329: 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.
nvd
CVE-2026-58632P3HIGHCVSS 7.8fixed in 10.0.28000.22692026-07-14
CVE-2026-58632 [HIGH] CWE-416 CVE-2026-58632: Use after free in Windows Win32K allows an authorized attacker to elevate privileges locally. Use after free in Windows Win32K allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-50687P3HIGHCVSS 7.8fixed in 10.0.28000.2269fixed in 10.0.28000.25252026-07-14
CVE-2026-50687 [HIGH] CWE-416 CVE-2026-50687: 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.
nvd
CVE-2026-50306P3HIGHCVSS 7.8fixed in 10.0.28000.2269fixed in 10.0.28000.25252026-07-14
CVE-2026-50306 [HIGH] CWE-190 CVE-2026-50306: 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.
nvd
CVE-2026-49173P3HIGHCVSS 7.8fixed in 10.0.28000.2269fixed in 10.0.28000.25252026-07-14
CVE-2026-49173 [HIGH] CWE-416 CVE-2026-49173: 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.
nvd
CVE-2026-56643P3HIGHCVSS 7.8fixed in 10.0.28000.25252026-07-14
CVE-2026-56643 [HIGH] CWE-416 CVE-2026-56643: 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.
nvd
CVE-2026-50353P3HIGHCVSS 7.8fixed in 10.0.28000.2269fixed in 10.0.28000.25252026-07-14
CVE-2026-50353 [HIGH] CWE-416 CVE-2026-50353: Use after free in Windows DirectX allows an authorized attacker to elevate privileges locally. Use after free in Windows DirectX allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-56644P3HIGHCVSS 7.8fixed in 10.0.28000.25252026-07-14
CVE-2026-56644 [HIGH] CWE-416 CVE-2026-56644: 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.
nvd
CVE-2026-40399P3HIGHCVSS 7.8fixed in 10.0.28000.21132026-05-12
CVE-2026-40399 [HIGH] CWE-121 CVE-2026-40399: Concurrent execution using shared resource with improper synchronization ('race condition') in Windo Concurrent execution using shared resource with improper synchronization ('race condition') in Windows TCP/IP allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-34343P3HIGHCVSS 7.8fixed in 10.0.28000.21132026-05-12
CVE-2026-34343 [HIGH] CWE-122 CVE-2026-34343: Heap-based buffer overflow in Windows Application Identity (AppID) Subsystem allows an authorized at Heap-based buffer overflow in Windows Application Identity (AppID) Subsystem allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-58635P3HIGHCVSS 7.8fixed in 10.0.28000.2269fixed in 10.0.28000.25252026-07-14
CVE-2026-58635 [HIGH] CWE-77 CVE-2026-58635: Improper neutralization of special elements used in a command ('command injection') in Windows Narra Improper neutralization of special elements used in a command ('command injection') in Windows Narrator Braille allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-85836P3HIGHCVSS 7.8fixed in 10.0.28000.32312026-10-13
CVE-2026-85836 [HIGH] CWE-416 CVE-2026-85836: 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.
nvd
CVE-2026-96308P3HIGHCVSS 7.8fixed in 10.0.28000.32312026-10-13
CVE-2026-96308 [HIGH] CWE-416 CVE-2026-96308: 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.
nvd
CVE-2026-84013P3HIGHCVSS 7.8fixed in 10.0.28000.32312026-10-13
CVE-2026-84013 [HIGH] CWE-416 CVE-2026-84013: Use after free in Windows Telephony Server allows an authorized attacker to elevate privileges local Use after free in Windows Telephony Server allows an authorized attacker to elevate privileges locally.
nvd
CVE-2026-96309P3HIGHCVSS 7.8fixed in 10.0.28000.32312026-10-13
CVE-2026-96309 [HIGH] CWE-416 CVE-2026-96309: Use after free in Windows Subsystem for Linux allows an authorized attacker to elevate privileges lo Use after free in Windows Subsystem for Linux allows an authorized attacker to elevate privileges locally.
nvd
← Previous40 / 116Next →
Microsoft Windows 11 26H1 vulnerabilities | cvebase