Out-of-bounds read in Windows Server - CVE-2026-69454
Published: October 13, 2026
Vulnerability identifier: #VU154395
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-69454
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to disclose sensitive information.
The vulnerability exists due to an out-of-bounds read in Microsoft Azure Attestation service and Device Health Attestation Service when accessed over a network. A remote attacker can read portions of heap memory from a privileged process running on the server to disclose sensitive information.
Affected software
Windows Server
How to mitigate CVE-2026-69454
Install security update from vendor's website.
Windows Server - addressed in versions 2019 10.0.17763.9376, 2022 10.0.20348.5761, 2025 10.0.26100.33650