CVE-2026-20805

Microsoft Windows Information Disclosure Vulnerability

Microsoft — Windows

Added to KEV catalog: 13 January 2026
Federal remediation due date: 3 February 2026
Weakness classification (CWE): CWE-200

CISA Description

Microsoft Windows Desktop Windows Manager contains an information disclosure vulnerability that allows an authorized attacker to disclose information locally.

Required action

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Notes

https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2026-20805 ; https://nvd.nist.gov/vuln/detail/CVE-2026-20805

View on NVD View on MITRE CVE View full CISA catalog

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