CVE-2007-1030: Niels Provos Libevent

High severity, CVSS 7.8. EPSS: 3.1% chance of exploitation in the next 30 days.

Niels Provos libevent 1.2 and 1.2a allows remote attackers to cause a denial of service (infinite loop) via a DNS response containing a label pointer that references its own offset.

Affected products

• Niels Provos Libevent: version 1.2 only; version 1.2a only

Published 2007-02-21. Last modified 2026-06-16.