MSRC-CVE-2026-96183 — Windows Health and Optimized Experiences Service Information Disclosure Vulnerability

Summary

Impact: Information Disclosure. Microsoft rating: Important. Not known to be exploited — Exploitation Less Likely. Customer action: Required.

Details

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.

Security updates
10.0.26100.9711 — https://support.microsoft.com/help/5127648
10.0.28000.3231 — https://support.microsoft.com/help/5127646

Vulnerabilities 1

Medium 5.5

CVE-2026-96183

Windows Health and Optimized Experiences Service Information Disclosure Vulnerability

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

Microsoft Windows 11 Version 24H2 Windows 11 Version 25H2 Windows 11 version 26H1 Windows

Oct 13, 2026

Revision history

2026-10-13 #1
Information published.

References

CVE-2026-96183 Windows Health and Optimized Experiences Service Information Disclosure Vulnerability - HTML
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-96183
Microsoft Exploitability Index
https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1
Microsoft Support Lifecycle
https://support.microsoft.com/lifecycle
Common Vulnerability Scoring System
https://www.first.org/cvss