High [CVE-2026-69401] Audio Video Control Transport Protocol Elevation of Privilege Vulnerability
This high-severity Microsoft Server advisory covers CVE-2026-69401 affecting Windows Server 2025.
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Summary
Audio Video Control Transport Protocol Elevation of Privilege Vulnerability
Affected product named by the advisory: Windows Server 2025.
- Windows 11 Version 24H2 10.0.26100.0 before 10.0.26100.9445
- Windows 11 Version 25H2 10.0.26200.0 before 10.0.26200.9445
- Windows 11 version 26H1 10.0.28000.0 before 10.0.28000.2954
- Windows Server 2025 10.0.26100.0 before 10.0.26100.33438
- Windows Server 2025 (Server Core installation) 10.0.26100.0 before 10.0.26100.33438
Official advisory · high-confidence parse· fetched 3 hours ago·verify at source
- KB5122871 (build 10.0.26100.33438)
- KB5124008 (build 10.0.26100.9445)
- KB5124012 (build 10.0.28000.2954)
Official advisory · high-confidence parse· fetched 3 hours ago·verify at source
Mitigation checklist
- Install the applicable security update for your platform: KB5122871, KB5124008, KB5124012 (see the Microsoft Update Catalog).
Official advisory · high-confidence parse· fetched 3 hours ago·verify at source
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