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CVE-2026-20805 — Microsoft Windows Information Disclosure Vulnerability

provenance: imported · CVE: CVE-2026-20805

CVE-2026-20805: Microsoft Windows Information Disclosure Vulnerability

CISA Known Exploited Vulnerability (KEV)

Vendor / project Microsoft
Product Windows
Date added 2026-01-13
Due date 2026-02-03
Ransomware campaign use Unknown

Description

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

Required action (CISA)

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

References

  • NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-20805
  • KEV catalog: https://www.cisa.gov/known-exploited-vulnerabilities-catalog