CVE-2002-0234: Juniper Netscreen ScreenOS

Low severity, CVSS 2.1. EPSS: 0.4% chance of exploitation in the next 30 days.

NetScreen ScreenOS before 2.6.1 does not support a maximum number of concurrent sessions for a system, which allows an attacker on the trusted network to cause a denial of service (resource exhaustion) via a port scan to an external network, which consumes all available connections.

Affected products

• Juniper Netscreen ScreenOS: up to and including 2.6.1

Published 2002-05-29. Last modified 2026-06-16.