CVE-2015-4176: Linux Kernel

Medium severity, CVSS 5.5. EPSS: 0.4% chance of exploitation in the next 30 days.

fs/namespace.c in the Linux kernel before 4.0.2 does not properly support mount connectivity, which allows local users to read arbitrary files by leveraging user-namespace root access for deletion of a file or directory.

Affected products

• Linux Linux Kernel: up to and including 4.0.1

Published 2016-05-02. Last modified 2026-06-17.