CVE-2025-33054: Remote Desktop Spoofing Vulnerability

Overview

Severity

High (CVSS 8.1)

CVSS Vector

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

Category

Spoofing

Exploit Status

Not Exploited

Exploitation Likelihood

Less Likely

Patch Tuesday

2025-Jul

Released

2025-07-08

EPSS Score

0.32% (percentile: 55.1%)

Description

Insufficient UI warning of dangerous operations in Remote Desktop Client allows an unauthorized attacker to perform spoofing over a network.

FAQ

According to the CVSS metric, user interaction is required (UI:R). What interaction would the user have to do? An attacker must trick the user into interacting with a spoofed WebAuthn prompt and entering their credentials. According to the CVSS metric, user interaction is required (UI:R) and privileges required are none (PR:N). What does that mean for this vulnerability? An unauthorized attacker must wait for a user to initiate a connection.

Affected Products (8)

ESU

• Windows 11 Version 22H2 for ARM64-based Systems
• Windows 11 Version 22H2 for x64-based Systems

Windows

• Windows Server 2025 (Server Core installation)
• Windows 11 Version 23H2 for ARM64-based Systems
• Windows 11 Version 23H2 for x64-based Systems
• Windows 11 Version 24H2 for ARM64-based Systems
• Windows 11 Version 24H2 for x64-based Systems
• Windows Server 2025

Security Updates (2)

• 5062552
• 5062553

Acknowledgments

Philemon Orphee Favrod with Microsoft, Josh Watson with Microsoft, Ray Reskusich with Microsoft, Gus Catalano with Microsoft

Revision History

• 2025-07-08: Information published.