January 13, 2026 · Applied Cybernetics Group
CVE-2026-20805 — Microsoft Windows
Microsoft Windows Information Disclosure Vulnerability
- Added to KEV
2026-01-13- Federal due date
2026-02-03- Vendor
- Microsoft
- Product
- Windows
- EPSS
- 91.3th percentile (score 0.050, as of
2026-07-13) - NVD CVSS v3.1
- 5.5 (MEDIUM)
- Ransomware use
- Unknown
- Upstream
- https://nvd.nist.gov/vuln/detail/CVE-2026-20805
CISA short 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.
NVD description
Exposure of sensitive information to an unauthorized actor in Desktop Windows Manager allows an authorized attacker to disclose information locally.