CVE-2001-1388: iptables before 1.2.4 does not accurately convert rate limits that are specified on the command line, which...

Security readout for executives and security teams

This is a legacy iptables issue where rate limits entered by an administrator may be translated incorrectly. A firewall rule meant to throttle traffic could allow too much traffic, or block more than intended. The business risk is mainly inaccurate enforcement of traffic-control policy on very old systems. Exposure appears limited to environments still running iptables before 1.2.4, including legacy Linux systems or embedded appliances. The provided affected-product metadata is incomplete and lists n/a, so confirm locally rather than assuming distribution coverage. Treat this as a legacy hygiene issue unless old iptables deployments remain in service. It is not documented as actively exploited, but it can undermine firewall assumptions where rate limiting is part of security or availability control. Mitigation focus: Identify systems running iptables before 1.2.4.; Review Red Hat advisory RHSA-2001:144 and vendor guidance.; Upgrade iptables through supported distribution packages where applicable..

Prepared

Jul 1, 2026, 06:17 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.