CVE-2001-0328

Medium severity, CVSS 5.0. EPSS: 18.1% chance of exploitation in the next 30 days.

TCP implementations that use random increments for initial sequence numbers (ISN) can allow remote attackers to perform session hijacking or disruption by injecting a flood of packets with a range of ISN values, one of which may match the expected ISN.

Published 2001-06-27. Last modified 2026-06-16.