CVE-2026-69280: CWE-416: Use After Free in Microsoft Windows 10 Version 1607

This vulnerability, identified as CVE-2026-69280, involves a use-after-free condition in the Windows Push Notifications component of Microsoft Windows 10. An authorized attacker with local access can exploit this flaw to elevate their privileges on the affected system. The issue impacts several specific Windows 10 builds starting from version 1607 and later, with patches released to address the problem. The CVSS v3.1 base score is 7.0, indicating high severity, with attack vector local, high attack complexity, low privileges required, no user interaction, and high impact on confidentiality, integrity, and availability.

Successful exploitation of this vulnerability allows an authorized local attacker to elevate privileges, potentially gaining higher-level access to the system. This can lead to full system compromise depending on the privileges escalated. The vulnerability affects confidentiality, integrity, and availability of the system.

An official fix is available from Microsoft. Users and administrators should apply the security updates provided by Microsoft for the affected Windows 10 versions as detailed in the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69280. No additional mitigation steps are indicated beyond applying the official patches.