CVE-2011-3200: Rsyslog

Medium severity, CVSS 5.0. EPSS: 20.8% chance of exploitation in the next 30 days.

Stack-based buffer overflow in the parseLegacySyslogMsg function in tools/syslogd.c in rsyslogd in rsyslog 4.6.x before 4.6.8 and 5.2.0 through 5.8.4 might allow remote attackers to cause a denial of service (application exit) via a long TAG in a legacy syslog message.

Affected products

• Rsyslog Rsyslog: version 4.6.0 only; version 4.6.1 only; version 4.6.2 only; version 4.6.3 only; version 4.6.4 only; version 4.6.5 only; …

Published 2011-09-06. Last modified 2026-06-16.