CVE-2025-55340 HIGH

CVE-2025-55340: Windows Remote Desktop Protocol Security Feature Bypass

Vendor Microsoft
Product Windows 10 Version 21H2
Weakness CWE-287 · Improper authentication
Published October 14, 2025
Last update February 22, 2026
View on NVD All CVEs

CVSS base score

7.0/10
Attack vector Local
Attack complexity High
Privileges required Low
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

What the vulnerability does

01Description

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

Key dates

02Disclosure timeline

October 14, 2025 CVE published
February 22, 2026 Record updated