CVE Vulnerabilities

CVE-2025-55340

Improper Authentication

Published: Oct 14, 2025 | Modified: Oct 24, 2025
CVSS 3.x
7
HIGH
Source:
NVD
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.x
RedHat/V2
RedHat/V3
Ubuntu

Improper authentication in Windows Remote Desktop Protocol allows an authorized attacker to bypass a security feature locally.

Weakness

When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.

Affected Software

Name Vendor Start Version End Version
Windows_10_21h2 Microsoft * 10.0.19044.6456 (excluding)
Windows_10_22h2 Microsoft * 10.0.19045.6456 (excluding)
Windows_11_22h2 Microsoft * 10.0.22621.6060 (excluding)
Windows_11_23h2 Microsoft * 10.0.22631.6060 (excluding)
Windows_11_24h2 Microsoft * 10.0.26100.6899 (excluding)
Windows_11_25h2 Microsoft * 10.0.26200.6899 (excluding)
Windows_server_2022 Microsoft * 10.0.20348.4294 (excluding)
Windows_server_2022_23h2 Microsoft * 10.0.25398.1913 (excluding)
Windows_server_2025 Microsoft * 10.0.26100.6899 (excluding)

Potential Mitigations

References