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CVE-2026-56171Important

Windows Remote Desktop Protocol (RDP) Information Disclosure Vulnerability

MSRC advisory NVD CVE.org

Assessment

Exposure of private personal information to an unauthorized actor in Windows RDP allows an unauthorized attacker to disclose information over a network.

Severity
Important
CVSS base score
7.1CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N/E:U/RL:O/RC:C
Impact
Information Disclosure
EPSS, next 30 days
0.7%Higher than 49.6% of scored CVEs · FIRST model run 26 Sep 2026 · about EPSS
Exploitability
Exploitation Less Likely
Publicly disclosed
No
Customer action
Required: apply the update
Component
Windows RDP
Weakness
CWE-359: Exposure of Private Personal Information to an Unauthorized Actor
Issued by
Microsoft
Published
16 Jul 2026 · July 2026
Last revised
16 Jul 2026

Updates that fix it

0 KBs

No KB listed

MSRC lists no downloadable update, which usually means a service-side fix or a release-notes update. Check the MSRC advisory.

Affected products

Windows
2 affected products
  • Remote Desktop Web Client
  • Windows Admin Center
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