CVE-2012-6689: Linux Kernel

High severity, CVSS 7.8. EPSS: 0.3% chance of exploitation in the next 30 days.

The netlink_sendmsg function in net/netlink/af_netlink.c in the Linux kernel before 3.5.5 does not validate the dst_pid field, which allows local users to have an unspecified impact by spoofing Netlink messages.

Affected products

• Linux Linux Kernel: before 3.0.44 (fixed in 3.0.44); from 3.1, before 3.2.30 (fixed in 3.2.30); from 3.3, before 3.4.12 (fixed in 3.4.12); from 3.5, before 3.5.5 (fixed in 3.5.5)

Published 2016-05-02. Last modified 2026-06-16.