CVE-2002-2254: The experimental IP packet queuing feature in Netfilter / IPTables in Linux kernel 2.4 up to 2.4.19 and 2.5...

Security readout for executives and security teams

This is an old Linux Netfilter/IPTables information exposure issue in an experimental IP packet queueing feature. Under specific conditions, later local processes could see network traffic meant to be restricted. Business urgency is mainly legacy-risk driven: modern supported systems are unlikely to run the affected kernels, but embedded, appliances, or forgotten Linux 2.4/2.5 systems need checking. Exposure is most likely in obsolete Linux 2.4/2.5 deployments using Netfilter/IPTables IP queueing. Normal modern Linux servers are unlikely candidates. Legacy network appliances, embedded systems, lab hosts, or long-lived unsupported workloads deserve targeted inventory review. Low for typical modern environments, but verify legacy exposure. Prioritize asset discovery over emergency response. Escalate only if affected kernels and IP queueing are confirmed on business-critical or sensitive network paths. Mitigation focus: Identify any Linux 2.4 or 2.5 systems still operating.; Check vendor or distribution advisories for fixed kernel guidance.; Retire or upgrade unsupported affected kernels where possible..

Prepared

Jun 29, 2026, 02:29 UTC (UTC+00:00)

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