CVE-2005-4837: Net-SNMP

High severity, CVSS 10.0. EPSS: 9.7% chance of exploitation in the next 30 days.

snmp_api.c in snmpd in Net-SNMP 5.2.x before 5.2.2, 5.1.x before 5.1.3, and 5.0.x before 5.0.10.2, when running in master agentx mode, allows remote attackers to cause a denial of service (crash) by causing a particular TCP disconnect, which triggers a free of an incorrect variable, a different vulnerability than CVE-2005-2177.

Affected products

• Net-SNMP Net-SNMP: version 5.0 only; version 5.0.1 only; version 5.0.2 only; version 5.0.3 only; version 5.0.4_pre2 only; version 5.0.5 only; …
• Sourceforge Net-SNMP: up to and including 5.0.9; up to and including 5.1.2; up to and including 5.2.1.2

Published 2005-12-31. Last modified 2026-06-16.