CVE-2017-16820: Collectd

Critical severity, CVSS 9.8. EPSS: 4% chance of exploitation in the next 30 days.

The csnmp_read_table function in snmp.c in the SNMP plugin in collectd before 5.6.3 is susceptible to a double free in a certain error case, which could lead to a crash (or potentially have other impact).

Affected products

• Collectd Collectd: before 5.6.3 (fixed in 5.6.3)

Published 2017-11-14. Last modified 2026-06-17.