High [CVE-2026-69443] Windows Device Health Attestation (DHA) Information Disclosure Vulnerability
This high-severity Microsoft Server advisory covers CVE-2026-69443 affecting Windows Server 2019, Windows Server 2022, Windows Server 2025.
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Summary
Windows Device Health Attestation (DHA) Information Disclosure Vulnerability
Affected products named by the advisory: Windows Server 2019; Windows Server 2022; Windows Server 2025.
- Windows 10 Version 1809 10.0.17763.0 before 10.0.17763.9245
- Windows Server 2019 10.0.17763.0 before 10.0.17763.9245
- Windows Server 2019 (Server Core installation) 10.0.17763.0 before 10.0.17763.9245
- Windows Server 2022 10.0.20348.0 before 10.0.20348.5622
- 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
- KB5122876 (build 10.0.17763.9245)
- KB5122882 (build 10.0.20348.5622)
- KB5122871 (build 10.0.26100.33438)
Official advisory · high-confidence parse· fetched 3 hours ago·verify at source
Mitigation checklist
- Install the applicable security update for your platform: KB5122876, KB5122882, KB5122871 (see the Microsoft Update Catalog).
Official advisory · high-confidence parse· fetched 3 hours ago·verify at source
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