CVE-2000-0558: HP OpenView Network Node Manager

High severity, CVSS 10.0. EPSS: 5.2% chance of exploitation in the next 30 days.

Buffer overflow in HP Openview Network Node Manager 6.1 allows remote attackers to execute arbitrary commands via the Alarm service (OVALARMSRV) on port 2345.

Affected products

• HP OpenView Network Node Manager: version 6.1 only

Published 2000-06-06. Last modified 2026-06-16.