VULNERABILITY INTELLIGENCE

CVE-2001-0183

CVSS score7.5 HIGH
EPSS probability8.09%
CISA KEVNot currently listed
Published2001-03-26
Last modified2026-06-16
CVSS vectorAV:N/AC:L/Au:N/C:P/I:P/A:P

Description

ipfw and ip6fw in FreeBSD 4.2 and earlier allows remote attackers to bypass access restrictions by setting the ECE flag in a TCP packet, which makes the packet appear to be part of an established connection.

Primary references