CVE-2007-2782: Packeteer Packetshaper

High severity, CVSS 7.5. EPSS: 1.6% chance of exploitation in the next 30 days.

Packeteer PacketShaper uses fixed increments in TCP initial sequence number (ISN) values, which allows remote attackers to predict the ISN value, and perform session hijacking or disruption.

Affected products

• Packeteer Packetshaper: version 7.3.0g2 only; version 7.5.0g1 only

Published 2007-05-21. Last modified 2026-06-16.