CVE-2026-26179: high-severity vulnerability in Microsoft Windows 11 version 23H2
Windows Kernel Elevation of Privilege Vulnerability
Published · Updated
41Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 7.8epss 0.3%
from disclosure to weapon52 days
Published on NVDApr 14
1st PoC+52d
exploitation probability
0.3%top 75% of all CVEs
observed exploitation
nono source reports it
1 public exploit(s)
Double free in Windows Kernel allows an authorized attacker to elevate privileges locally.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
Affected products
Microsoft · Windows 11 version 23H2Microsoft · Windows 11 Version 24H2Microsoft · Windows 11 Version 25H2Microsoft · Windows 11 version 26H1Microsoft · Windows Server 2022, 23H2 Edition (Server Core installation)Microsoft · Windows Server 2025Microsoft · Windows Server 2025 (Server Core installation)public PoCs found — 1
githubgithub.com/nikosecurity/CVE-2026-26179★ 0⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
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