CVE-2026-69443

Windows Device Health Attestation (DHA) Information Disclosure Vulnerability

CVE-2026-69443 is fixed in 8 products on 1 platform, first by KB5122876, released September 8, 2026. It is not reported as exploited. Patch Radar priority: High.

High

CVSS

7.5

Important

Exploitation

None reported

Exploitation Less Likely

CISA KEV

Not listed

Not in the Known Exploited Vulnerabilities catalog

EPSS

0.0103

63rd percentile

<p>Out-of-bounds read in Microsoft Azure Attestation service and Device Health Attestation Service allows an unauthorized attacker to disclose information over a network.</p>

Where it's fixed

Product	Fixed in	Fix	Released
Microsoft
Windows 10 Version 1809 for 32-bit Systems	17763.9245	KB5122876	Sep 8, 2026
Windows 10 Version 1809 for x64-based Systems	17763.9245	KB5122876	Sep 8, 2026
Windows Server 2019	17763.9245	KB5122876	Sep 8, 2026
Windows Server 2019 (Server Core installation)	17763.9245	KB5122876	Sep 8, 2026
Windows Server 2022	20348.5622	KB5122882	Sep 8, 2026
Windows Server 2022 (Server Core installation)	20348.5622	KB5122882	Sep 8, 2026
Windows Server 2025	26100.33438	KB5122871	Sep 8, 2026
Windows Server 2025 (Server Core installation)	26100.33438	KB5122871	Sep 8, 2026

Details

Published
September 8, 2026
Weakness
Out-of-bounds Read
Vendor advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69443

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