CVE-2007-3533: 3com 3cnj220

Medium severity, CVSS 5.0. EPSS: 1.7% chance of exploitation in the next 30 days.

The 3Com IntelliJack Switch NJ220 before 2.0.23 allows remote attackers to cause a denial of service (reboot and reporting outage) via a loopback packet with zero in the length field.

Affected products

• 3com 3cnj220: up to and including 2.0.22

Published 2007-07-03. Last modified 2026-06-16.