CVE-2007-3740: Linux Kernel

Medium severity, CVSS 4.4. EPSS: 0.4% chance of exploitation in the next 30 days.

The CIFS filesystem in the Linux kernel before 2.6.22, when Unix extension support is enabled, does not honor the umask of a process, which allows local users to gain privileges.

Affected products

• Linux Linux Kernel: up to and including 2.6.21.7; version 2.2.27 only; version 2.4.36 only; version 2.4.36.1 only; version 2.4.36.2 only; version 2.4.36.3 only; …

Published 2007-09-14. Last modified 2026-06-16.