CVE-2007-1497: Linux Kernel

Medium severity, CVSS 5.0. EPSS: 3% chance of exploitation in the next 30 days.

nf_conntrack in netfilter in the Linux kernel before 2.6.20.3 does not set nfctinfo during reassembly of fragmented packets, which leaves the default value as IP_CT_ESTABLISHED and might allow remote attackers to bypass certain rulesets using IPv6 fragments.

Affected products

• Linux Linux Kernel: up to and including 2.6.20.2

Published 2007-03-16. Last modified 2026-06-16.