Main Vulnerability Database Vulnerabilities #VU155103

Out-of-bounds read in Microsoft Windows and Windows Server - CVE-2026-85331

Published: October 14, 2026

Vulnerability identifier: #VU155103

CSH Severity: Low

CVSS v4: 7.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2026-85331

CWE-ID: CWE-125

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote user to read heap memory from a privileged process running on the server.

The vulnerability exists due to an out-of-bounds read in Windows Device Association Service when accessed over a network. A remote user can exploit the out-of-bounds read to read heap memory from a privileged process running on the server.

Affected software

Microsoft Windows
Windows Server

How to mitigate CVE-2026-85331

Install security update from vendor's website.

Microsoft Windows - addressed in versions 10 21H2 10.0.19044.7807, 10 1607 10.0.14393.9612, 10 1809 10.0.17763.9376, 11 23H2 10.0.22631.7652, 11 24H2 10.0.26100.9711, 11 25H2 10.0.26200.9711, 11 26H1 10.0.28000.3231
Windows Server - addressed in versions 2012 R2 6.3.9600.23470, 2016 10.0.14393.9612, 2019 10.0.17763.9376, 2022 10.0.20348.5761, 2025 10.0.26100.33650

External References

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2026-85331

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