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Vulnerability Intelligence

CVE-2026-20838 | Mondoo Vulnerability Intelligence

Vulnerability IntelligenceCVE-2026-20838

CVE-2026-20838

MEDIUM5.5

Windows Kernel Information Disclosure Vulnerability

Published Jan 13, 2026

Modified 1 weeks ago

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20838

https://www.cve.org/CVERecord?id=CVE-2026-20838

CVSS Analysis

CVSS v3.1

5.5

Exploitability

Attack Vector

LocalAV:L

Attack Complexity

LowAC:L

Privileges Required

LowPR:L

User Interaction

NoneUI:N

Scope

Scope

UnchangedS:U

Impact

Confidentiality

HighC:H

Integrity

NoneI:N

Availability

NoneA:N

5.5/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

Weakness Type (CWE)

Information Disclosure

Error Message Info Leak

Ecosystems

Timeline

PublishedJan 13, 2026

ModifiedFeb 22, 2026