CISA Known Exploited Vulnerability

This vulnerability is actively exploited in the wild and listed in the CISA Known Exploited Vulnerabilities catalog.

Remediation Deadline: Feb 3, 2026

CVE-2026-20805

High

EPSS 4.8%CISA KEV

Description

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

EPSS — Exploit Probability

4.8%

Higher than 89.3% of all CVEs

Required Action

https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2026-20805 ; https://nvd.nist.gov/vuln/detail/CVE-2026-20805

Related Articles (1)

Data Breaches

Patch Tuesday, January 2026 Edition

Microsoft today issued patches to plug at least 113 security holes in its various Windows operating systems and supported software. Eight of the vulnerabilities earned Microsoft's most-dire "critical" rating, and the company warns that attackers are already exploiting one of…

Jan 14, 2026

Risk Assessment

ELEVATED

In CISA KEV

Details

Severity: High
EPSS: 4.8%
CISA KEV: Yes
Ransomware: Unknown
Articles: 1

Timeline

Published

Jan 13, 2026

Added to KEV

Jan 13, 2026

Remediation Due

Feb 3, 2026

Affected Product

Microsoft

Windows

View all Microsoft CVEs

External Links

NVD (NIST)CVE Details MITRE CVE