CVE-2002-0891: Juniper Netscreen ScreenOS

Medium severity, CVSS 5.0. EPSS: 1.6% chance of exploitation in the next 30 days.

The web interface (WebUI) of NetScreen ScreenOS before 2.6.1r8, and certain 2.8.x and 3.0.x versions before 3.0.3r1, allows remote attackers to cause a denial of service (crash) via a long user name.

Affected products

• Juniper Netscreen ScreenOS: version 2.5 only; version 2.5r1 only; version 2.5r2 only; version 2.5r6 only; version 2.6.1 only; version 2.6.1r1 only; …

Published 2002-10-04. Last modified 2026-06-16.