MSRC-CVE-2025-55677 — Windows Device Association Broker Service Elevation of Privilege Vulnerability

Summary

Impact: Elevation of Privilege. Microsoft rating: Important. Not known to be exploited — Exploitation Unlikely. Customer action: Required.

Details

What privileges could be gained by an attacker who successfully exploited the vulnerability?
An attacker could use this vulnerability to elevate privileges from Medium Integrity Level to Local Service.

Security updates
10.0.26200.6899 — https://support.microsoft.com/help/5066835

Vulnerabilities 1

High 7.8

CVE-2025-55677

Windows Device Association Broker Service Elevation of Privilege Vulnerability

Untrusted pointer dereference in Windows Device Association Broker service allows an authorized attacker to elevate privileges locally.

Microsoft Windows Server 2025 Windows Server 2025 (Server Core installation) Windows 11 Version 24H2 Windows

Oct 14, 2025

Revision history

2025-10-14 #1
Information published.

References

CVE-2025-55677 Windows Device Association Broker Service Elevation of Privilege Vulnerability - HTML
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-55677
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