Main Vulnerability Database Vulnerabilities #VU164838

Use-after-free in Microsoft Windows and Windows Server - CVE-2026-112751

Published: November 11, 2026

Vulnerability identifier: #VU164838

CSH Severity: Low

CVSS v4: 7.3 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2026-112751

CWE-ID: CWE-416

Exploitation vector: Local access

Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a local user to elevate privileges from a low integrity level in a sandboxed execution environment to a medium integrity level.

The vulnerability exists due to use-after-free in Windows Remote Assistance when previously freed memory is accessed during local execution. A local user can win a race condition and exploit the memory error to elevate privileges beyond the sandbox's integrity level.

Affected software

Microsoft Windows
Windows Server

How to mitigate CVE-2026-112751

Install security update from vendor's website.

Microsoft Windows - addressed in versions 10 21H2 10.0.19044.7846, 10 22H2 10.0.19045.7846, 10 1607 10.0.14393.9688, 10 1809 10.0.17763.9487, 11 23H2 10.0.22631.7711, 11 24H2 10.0.26100.9911, 11 24H2 10.0.26100.9974, 11 25H2 10.0.26200.9911, 11 25H2 10.0.26200.9974, 11 26H1 10.0.28000.3501
Windows Server - addressed in versions 2016 10.0.14393.9688, 2019 10.0.17763.9487, 2022 10.0.20348.5870, 2025 10.0.26100.33730, 2025 10.0.26100.33822

External References

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2026-112751

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