CVE-2002-2266: Netscreen ScreenOS

Medium severity, CVSS 5.0. EPSS: 1.4% chance of exploitation in the next 30 days.

NetScreen ScreenOS 2.8 through 4.0, when forwarding H.323 or Netmeeting traffic, allows remote attackers to cause a denial of service (firewall session table consumption) by establishing multiple half-open H.323 sessions, which are not cleaned up on garbage removal and do not time out for 36 hours.

Affected products

• Netscreen ScreenOS: version 2.8 only; version 3.0 only; version 3.1 only; version 4.0 only

Published 2002-12-31. Last modified 2026-06-16.