Main Vulnerability Database Vulnerabilities #VU164658

Use-after-free in Microsoft Windows and Windows Server - CVE-2026-105530

Published: November 10, 2026

Vulnerability identifier: #VU164658

CSH Severity: Low

CVSS v4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2026-105530

CWE-ID: CWE-416

Exploitation vector: Local access

Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a local user to infer limited information from memory in a privileged process.

The vulnerability exists due to use-after-free in Windows System Events Broker when accessing memory after it has been freed. A local user can exploit this condition and observe comparison results to infer information from a privileged process's memory.

Exploitation does not provide unrestricted read access to the privileged process's memory.

Affected software

Microsoft Windows
Windows Server

How to mitigate CVE-2026-105530

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-2026-105530

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