CVE-2026-69443

Windows Device Health Attestation (DHA) Information Disclosure Vulnerability

State: Published
Severity: 7.5 High
Published: Sep 8, 2026
Updated: Oct 31, 2026
Reserved: Aug 3, 2026

Description

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

Scores

CVSS	Score	Vector	Source
3.1	7.5 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N	microsoft

Weaknesses

CWE-125 Out-of-bounds Read

Affected Products

Product	Versions
Windows 10 Version 1809Microsoft	10.0.17763.0 to before 10.0.17763.9245Affected
Windows Server 2019Microsoft	10.0.17763.0 to before 10.0.17763.9245Affected
Windows Server 2019 (Server Core installation)Microsoft	10.0.17763.0 to before 10.0.17763.9245Affected
Windows Server 2022Microsoft	10.0.20348.0 to before 10.0.20348.5622Affected
Windows Server 2025Microsoft	10.0.26100.0 to before 10.0.26100.33438Affected
Windows Server 2025 (Server Core installation)Microsoft	10.0.26100.0 to before 10.0.26100.33438Affected

References

Windows Device Health Attestation (DHA) Information Disclosure Vulnerabilityvendor-advisorypatch

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