CVE-2007-6437: Balabit Syslog-NG Open Source Edition

Medium severity, CVSS 5.0. EPSS: 3.3% chance of exploitation in the next 30 days.

Balabit syslog-ng 2.0.x before 2.0.6 and 2.1.x before 2.1.8 allows remote attackers to cause a denial of service (crash) via a message with a timestamp that does not contain a trailing space, which triggers a NULL pointer dereference.

Affected products

• Balabit Syslog-NG Open Source Edition: up to and including 2.0.6
• Balabit Syslog-NG Premium Edition: up to and including 2.1.8

Published 2007-12-19. Last modified 2026-06-16.