CVE-2026-20838
Windows Kernel Information Disclosure Vulnerability
Vexday Risk Score
13Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS 5.5EPSS 0.6%KEV nãoPoC —Nuclei —Metasploit —Patch referenciado
Lifecycle
13 Jan 2026Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
Generation of error message containing sensitive information in Windows Kernel allows an authorized attacker to disclose information locally.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C
Affected products
Microsoft · Windows 11 version 22H3Microsoft · Windows 11 Version 23H2Microsoft · Windows 11 Version 24H2Microsoft · Windows 11 Version 25H2Microsoft · Windows Server 2022Microsoft · Windows Server 2022, 23H2 Edition (Server Core installation)Microsoft · Windows Server 2025Microsoft · Windows Server 2025 (Server Core installation)Want to know if your infrastructure is exposed to this?
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