CVE-2026-20805

Timeline

Detection, updates, and resolution for this record.

1. Jan 13, 2026 · Catalog

   Detected

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

2. Jan 13, 2026 · CISA KEV

   Known exploited

   Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

3. Feb 3, 2026 · CISA KEV

   Remediation due

   Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

4. Jul 30, 2026 · Catalog

   Updated

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

Affected

• cpe microsoft/windows 10 1607version unspecified
• cpe microsoft/windows 10 1809version unspecified
• cpe microsoft/windows 10 21h2version unspecified
• cpe microsoft/windows 10 22h2version unspecified
• cpe microsoft/windows 11 23h2version unspecified
• cpe microsoft/windows 11 24h2version unspecified
• vendor Microsoft Windowsversion unspecified

Sources

• CISA KEVCVE-2026-20805

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

  cisa.gov
• CVE.orgCVE-2026-20805

  Official CVE identifier

  cve.org
• FIRST EPSSCVE-2026-20805

  30-day exploitation probability 7.5%

  first.org
• NIST NVDCVE-2026-20805

  Exposure of sensitive information to an unauthorized actor in Desktop Windows Manager allows an authorized attacker to disclose information locally.

  nvd.nist.gov

References

• CISA note · msrc.microsoft.com
• Vendor Advisory · msrc.microsoft.com
• CISA note · nvd.nist.gov
• US Government Resource · cisa.gov