Exploited vulnerability

CVE-2026-20805

TLP:CLEAR

Microsoft Windows Information Disclosure Vulnerability

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

Facts

Vendor: Microsoft
Product: Windows
CVSS: 5.5
EPSS (probability of exploitation within 30 days): 7.5 %
On CISA's Known Exploited Vulnerabilities list since: 13 January 2026
First known exploitation: 13 January 2026
CISA's deadline for US federal agencies: 3 February 2026
Weakness: CWE-200
First seen by Risk Letters: 13 January 2026

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Data: NVD (public domain), CISA KEV, FIRST EPSS, MITRE ATT&CK, AlienVault OTX. NVD