Linux Kernel Improper Ownership Management Vulnerability

When

2025-06-17 00:00 UTC · day precision

Where

Global (internet)

Category

cyber_exploit

Linux Kernel contains an improper ownership management vulnerability, where unauthorized access to the execution of the setuid file with capabilities was found in the Linux kernel’s OverlayFS subsystem in how a user copies a capable file from a nosuid mount into another mount. This uid mapping bug allows a local user to escalate their privileges on the system.

Sources

• CISA ↗ · first seen 2025-06-17 00:00 UTC

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