Oct 19, 2026 · 18:25 UTC SEARCH
UNRATED KNOWN EXPLOITED
Vulnerability intelligence

CVE-2026-20805

VendorMicrosoft
ProductWindows
Known exploitedYes
Added to CISA KEVJanuary 13, 2026
KEV due dateFebruary 3, 2026
Known ransomware useNot identified by CISA

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.

CISA KEV status

This vulnerability is listed in CISA’s Known Exploited Vulnerabilities Catalog. Known ransomware campaign use: Unknown.

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