CVE-2026-56648

A time-of-check time-of-use (TOCTOU) race condition in the Windows Network File System enables authorized attackers to elevate their privileges over a network, potentially compromising sensitive data and system integrity. Organizations utilizing Windows systems, especially those with network file sharing capabilities, should prioritize addressing this vulnerability to mitigate the risk of unauthorized access and exploitation. Immediate action is recommended for environments handling critical or sensitive information.