Microsoft Windows Information Disclosure Vulnerability (CVE-2026-20805)
Severity: medium · Patch status: unknown · Since 2026-01-13 · CVE-2026-20805
Microsoft Windows Desktop Windows Manager contains an information disclosure vulnerability that allows an authorized attacker to disclose information locally. CISA added CVE-2026-20805 to its Known Exploited Vulnerabilities catalog on Jan 13, 2026, which means attackers are exploiting it in the wild.
What to do
- Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
- US federal agencies must remediate by Feb 3, 2026 (BOD 22-01); treat that as the outer limit.
Sources
All live incidents on Threat Watch
