CVE-2025-55676: Windows USB Video Class System Driver Information Disclosure Vulnerability

Overview

Severity

Medium (CVSS 5.5)

CVSS Vector

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

Category

Information Disclosure

Exploit Status

Not Exploited

Exploitation Likelihood

More Likely

Patch Tuesday

2025-Oct

Released

2025-10-14

Last Updated

2025-10-23

EPSS Score

0.07% (percentile: 20.4%)

Description

Generation of error message containing sensitive information in Windows USB Video Driver allows an authorized attacker to disclose information locally.

FAQ

What type of information could be disclosed by this vulnerability? Exploiting this vulnerability could allow the disclosure of certain memory address within kernel space. Knowing the exact location of kernel memory could be potentially leveraged by an attacker for other malicious activities.

Affected Products (6)

Windows

• Windows 11 Version 25H2 for x64-based Systems
• Windows 11 Version 25H2 for ARM64-based Systems
• Windows Server 2025 (Server Core installation)
• Windows 11 Version 24H2 for ARM64-based Systems
• Windows 11 Version 24H2 for x64-based Systems
• Windows Server 2025

Security Updates (1)

• 5066835

Acknowledgments

<a href="https://twitter.com/lewislee53">Lewis Lee</a>, <a href="https://twitter.com/ver0759">Chunyang Han</a>, and <a href="https://twitter.com/edwardzpeng">Zhiniang Peng</a> with HUST

Revision History

• 2025-10-14: Information published.
• 2025-10-23: Updated acknowledgment. This is an informational change only.