CVE-2026-20805
Desktop Window Manager Information Disclosure Vulnerability
Exposure of sensitive information to an unauthorized actor in Desktop Windows Manager allows an authorized attacker to disclose information locally.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
Desktop Window Manager Information Disclosure Vulnerability
Exposure of sensitive information to an unauthorized actor in Desktop Windows Manager allows an authorized attacker to disclose information locally.
- Record
CVE-2026-20805- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C - Weakness
- CWE-200
- Updated
- 2026-11-02
EUVDEUVD-2026-2073
Exposure of sensitive information to an unauthorized actor in Desktop Windows Manager allows an authorized attacker to disclose information locally.
- Record
EUVD-2026-2073- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-2x3m-95pj-8pg6
Exposure of sensitive information to an unauthorized actor in Desktop Windows Manager allows an...
Exposure of sensitive information to an unauthorized actor in Desktop Windows Manager allows an authorized attacker to disclose information locally.
- Record
GHSA-2x3m-95pj-8pg6- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-200
- Updated
- 2026-11-02
CISA KEV No score
Microsoft Windows Information Disclosure Vulnerability
Microsoft Windows Desktop Windows Manager contains an information disclosure vulnerability that allows an authorized attacker to disclose information locally.
- Record
CVE-2026-20805- Weakness
- CWE-200
- Updated
- 2026-11-02
NVD
Exposure of sensitive information to an unauthorized actor in Desktop Windows Manager allows an authorized attacker to disclose information locally.
- Record
CVE-2026-20805- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-200
- Updated
- 2026-11-02
Affected products
- microsoft windows
- microsoft windows 10 version 1607
- microsoft windows 10 version 1809
- microsoft windows 10 version 21h2
- microsoft windows 10 version 22h2
- microsoft windows 11 version 23h2
- microsoft windows 11 version 24h2
- microsoft windows 11 version 25h2
- microsoft windows server 2012
- microsoft windows server 2012 (server core installation)
- microsoft windows server 2012 r2
- microsoft windows server 2012 r2 (server core installation)
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- microsoft windows server 2016
- microsoft windows server 2016 (server core installation)
- microsoft windows server 2019
- microsoft windows server 2019 (server core installation)
- microsoft windows server 2022
- microsoft windows server 2022, 23h2 edition (server core installation)
- microsoft windows server 2025
- microsoft windows server 2025 (server core installation)
- microsoft windows 10 1607
- microsoft windows 10 1809
- microsoft windows 10 21h2
- microsoft windows 10 22h2
- microsoft windows 11 23h2
- microsoft windows 11 24h2
- microsoft windows 11 25h2
- microsoft windows server 2022 23h2
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| PoC in GitHub | fevar54/CVE-2026-20805-POC | 2026-01-14 |
| PoC in GitHub | Uzair-Baig0900/CVE-2026-20805-PoC | 2026-01-19 |
| PoC in GitHub | mrk336/Inside-CVE-2026-20805-How-a-Windows-DWM-Flaw-Exposed-Sensitive-Data | 2026-01-28 |
| PoC in GitHub | SimoesCTT/-SCTT-2026-33-0002-DWM-Visual-Field-Singularity | 2026-01-31 |
| PoC in GitHub | SimoesCTT/SCTT-2026-33-0002-DWM-Visual-Field-Singularity | 2026-01-31 |
History
| Recorded | Changed | Sources |
|---|---|---|
| exploits | PoC in GitHub | |
| exploitation, exploits | ||
| aliases, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, CISA KEV, NVD, PoC in GitHub |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-20805 is a medium vulnerability (CVSS 5.5) in Microsoft Windows, published January 13, 2026. CISA lists it as known to be exploited, since January 13, 2026. EUVD reports exploitation since January 13, 2026. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 7.46%, the 94th percentile. No source names a fixed version.