CVE-2001-0183

HighCVSS 7.5/10Last modified Jun 16, 2026

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.

Metrics

CVSS 2.0 7.5/10AV:N/AC:L/Au:N/C:P/I:P/A:P

Affected software

No affected versions have been published.

Timeline

Published
Mar 26, 2001
Last modified
Jun 16, 2026
NVD status
Modified

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CVE-2001-0183: High severity, CVSS 7.5 | Vulnix