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CVE-2025-50174: Windows Device Association Broker Service Elevation of Privilege Vulnerability

• Severity: high (CVSS 7.0 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-10-14 · updated 2026-10-18
• Weakness: CWE-416

Description

Use after free in Windows Device Association Broker service allows an authorized attacker to elevate privileges locally.

Affected products

• Microsoft Windows 11: before 10.0.26100.6899 — fixed in 10.0.26100.6899
• Microsoft Windows 11 25H2: before 10.0.26200.6899 — fixed in 10.0.26200.6899
• Microsoft Windows Server 2025: through 10.0.26100.6899
• Microsoft Windows 11: from 10.0.26100.0 before 10.0.26100.6899 — fixed in 10.0.26100.6899
• Microsoft Windows 11 25H2: from 10.0.26200.0 before 10.0.26200.6899 — fixed in 10.0.26200.6899
• Microsoft Windows Server 2025: from 10.0.26100.0 before 10.0.26100.6899 — fixed in 10.0.26100.6899

How to fix

Upgrade to a fixed version: Microsoft Windows 11 10.0.26100.6899; Microsoft Windows 11 25H2 10.0.26200.6899; Microsoft Windows 11 10.0.26100.6899; Microsoft Windows 11 25H2 10.0.26200.6899; Microsoft Windows Server 2025 10.0.26100.6899. Check the vendor advisory for mitigations.

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-50174

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