CVE-2026-20805
KEVMicrosoft Windows Information Disclosure Vulnerability
Description
Microsoft Windows Desktop Windows Manager contains an information disclosure vulnerability that allows an authorized attacker to disclose information locally.
Exposure of sensitive information to an unauthorized actor in Desktop Windows Manager allows an authorized attacker to disclose information locally.
CVSS 3.1 vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:NPublishedJan 13, 2026
Last modifiedJul 30, 2026
Added to KEVJan 13, 2026
Remediation dueFeb 3, 2026
References
- msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20805Vendor Advisory
- cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-20805US Government Resource
0 recent articles mention this CVE
58
Risk assessment · Medium
Actively exploited. Patch immediately.
- Exploitation
- Confirmed in the wild (CISA KEV)
- Federal remediation deadline
- Overdue by 265 days
- CVSS
- 5.5 MEDIUM
- EPSS (30-day exploit probability)
- 7.5% · top 6% of all CVEs
- Weakness
- CWE-200
Recommended actions
- 1.Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
- 2.Treat as emergency change: patch or isolate internet-facing instances first.
- 3.Hunt for compromise: review logs for the disclosure window, not just from the patch date.
Assessment is derived automatically from the live signals above; verify against your own asset inventory.