CVE-2009-1439: Linux Kernel

High severity, CVSS 7.8. EPSS: 4.3% chance of exploitation in the next 30 days.

Buffer overflow in fs/cifs/connect.c in CIFS in the Linux kernel 2.6.29 and earlier allows remote attackers to cause a denial of service (crash) via a long nativeFileSystem field in a Tree Connect response to an SMB mount request.

Affected products

• Linux Linux Kernel: up to and including 2.6.29; 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 2009-04-27. Last modified 2026-06-16.