CVE-2026-96183: Windows Health and Optimized Experiences Service 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

Less Likely

Patch Tuesday

2026-Oct

Released

2026-10-13

EPSS Score

0.34% (percentile: 26.0%)

Description

Missing authentication for critical function in Windows Health and Optimized Experiences Service allows an authorized attacker to disclose information locally.

FAQ

What type of information could be disclosed by this vulnerability? Successful exploitation could allow an attacker to access diagnostic information collected by the Windows Health and Optimized Experiences Service, including system configuration, application crash, performance, and kernel driver allocation data.

Affected Products (8)

Windows

• Windows 11 Version 24H2 for ARM64-based Systems
• Windows 11 Version 24H2 for x64-based Systems
• Windows 11 Version 25H2 for ARM64-based Systems
• Windows 11 Version 25H2 for x64-based Systems
• Windows 11 Version 26H2 for ARM64-based Systems
• Windows 11 Version 26H2 for x64-based Systems
• Windows 11 Version 26H1 for ARM64-based Systems
• Windows 11 version 26H1 for x64-based Systems

Security Updates (2)

• 5127648
• 5127646

Acknowledgments

<a href="https://www.linkedin.com/in/ali-shihab-952228318/">Ali Shihab</a> with <a href="https://www.esraa.edu.iq/">Al-Esraa University</a>

Revision History

• 2026-10-13: Information published.