PT-2025-42025 · Microsoft · Windows Remote Desktop Protocol+1

Published 2025-10-14 · Updated 2025-10-14 · CVE-2025-55340

Positive Technologies (AI Summary)

CVSS v3.1

7.0

High

Base vector

AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Windows Remote Desktop Protocol (affected versions not specified)

Description An improper authentication issue exists in Windows Remote Desktop Protocol. This allows an authorized attacker to bypass a security feature locally.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Improper Authentication

Weakness Enumeration

CWE-287

Related Identifiers

BDU:2025-14055

CVE-2025-55340

Affected Products

Windows

Windows Remote Desktop Protocol

References · 7

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-55340 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-55340 · Security Note
• https://bdu.fstec.ru/vul/2025-14055 · Security Note
• https://osv.dev/vulnerability/CVE-2025-55340 · Vendor Advisory
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2025-55340 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-55340 · Security Note
• https://twitter.com/CVEnew/status/1978198282368106875 · Twitter Post