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Medium severity · published Jan 13, 2026
CVE-2026-20805
Desktop Window Manager Information Disclosure Vulnerability
In wildKEV
5.5
CVSS
7.5%
EPSS
Yes
On KEV
Description
Exposure of sensitive information to an unauthorized actor in Desktop Windows Manager allows an authorized attacker to disclose information locally.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)7.5% · higher than 94% of CVEs
Exploited in the wildYes
CISA KEVListed Jan 13, 2026
Federal remediation dueFeb 3, 2026
Ransomware campaign useNot known
Affected products
Which versions
WI
Windows · Microsoft
All versions, or not specified · source: KEV
W1
Windows 10 Version 1607 · Microsoft
10.0.14393.0 before 10.0.14393.8783 · source: vendor
W1
Windows 10 Version 1809 · Microsoft
10.0.17763.0 before 10.0.17763.8276 · source: vendor
W1
Windows 10 Version 21H2 · Microsoft
10.0.19044.0 before 10.0.19044.6809 · source: vendor
W1
Windows 10 Version 22H2 · Microsoft
10.0.19045.0 before 10.0.19045.6809 · source: vendor
W1
Windows 11 Version 24H2 · Microsoft
10.0.26100.0 before 10.0.26100.7623 · source: vendor
W1
Windows 11 Version 25H2 · Microsoft
10.0.26200.0 before 10.0.26200.7623 · source: vendor
W1
Windows 11 version 23H2 · Microsoft
10.0.22631.0 before 10.0.22631.6491; 10.0.22631.0 before 10.0.22631.6491 · source: vendor
WS
Windows Server 2012 · Microsoft
6.2.9200.0 before 6.2.9200.25868 · source: vendor, NVD
WS
Windows Server 2012 (Server Core installation) · Microsoft
6.2.9200.0 before 6.2.9200.25868 · source: vendor
WS
Windows Server 2012 R2 · Microsoft
6.3.9600.0 before 6.3.9600.22968 · source: vendor
WS
Windows Server 2012 R2 (Server Core installation) · Microsoft
6.3.9600.0 before 6.3.9600.22968 · source: vendor
In the news
VulnerabilityMedium
[CISA KEV] CVE-2026-20805: Microsoft Windows - Microsoft Windows Information Disclosure Vulnerability
Microsoft Windows Desktop Windows Manager contains an information disclosure vulnerability that allows an authorized attacker to disclose information locally.
WIWindowsCVE-2026-20805
Jan 13, 2026·CISA KEV
Affected product
WI
Windows
Microsoft
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-20805
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-20805
CISA KEV catalogue
https://www.cisa.gov/known-exploited-vulnerabilities-catalog
vendor-advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20805
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