CVE-2026-69325: CWE-122: Heap-based Buffer Overflow in Microsoft Windows 10 Version 1607

This vulnerability (CVE-2026-69325) is a heap-based buffer overflow in Microsoft JScript within Windows 10 Version 1607 and other specified builds. It enables remote code execution by an attacker without requiring user interaction, exploiting the buffer overflow to run arbitrary code. The vulnerability affects multiple Windows 10 versions identified by specific build ranges. Microsoft has published an official fix and recommends applying the patch to mitigate the risk.

Successful exploitation of this vulnerability allows an unauthorized attacker to execute arbitrary code remotely on affected Windows 10 systems. This could lead to full system compromise, including confidentiality, integrity, and availability impacts. The vulnerability does not require user interaction but has a high attack complexity.

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-2026-69325. No additional mitigation steps are indicated beyond applying the patch.