VULNERABILITY INTELLIGENCE

CVE-2012-2663

CVSS score7.5 HIGH
EPSS probability2.74%
CISA KEVNot currently listed
Published2014-02-15
Last modified2026-06-16
CVSS vectorAV:N/AC:L/Au:N/C:P/I:P/A:P

Description

extensions/libxt_tcp.c in iptables through 1.4.21 does not match TCP SYN+FIN packets in --syn rules, which might allow remote attackers to bypass intended firewall restrictions via crafted packets. NOTE: the CVE-2012-6638 fix makes this issue less relevant.

Primary references