CVE-2002-2266: NetScreen ScreenOS 2.8 through 4.0, when forwarding H.323 or Netmeeting traffic, allows remote attackers to...

Security readout for executives and security teams

This issue affects older NetScreen ScreenOS firewalls when they forward H.323 or NetMeeting traffic. A remote attacker could exhaust the firewall session table, disrupting legitimate traffic. The sources do not provide a CVSS score, patch details, or evidence of active exploitation. Exposure is most plausible on legacy NetScreen devices running ScreenOS 2.8 through 4.0 with policies or helpers that forward H.323 or NetMeeting traffic. Organizations without these old devices or without H.323 forwarding are unlikely to be exposed. Treat this as a legacy perimeter availability risk. Prioritize if old NetScreen firewalls still support voice or collaboration traffic, especially on business-critical network paths. If those devices are retired or H.323 is blocked, urgency is lower. Mitigation focus: Inventory NetScreen devices and identify ScreenOS 2.8 through 4.0 systems.; Disable or tightly restrict H.323 and NetMeeting forwarding if not required.; Check vendor or maintainer guidance for update or replacement options..

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.