CVE-2016-10363: Elastic Logstash

High severity, CVSS 7.5. EPSS: 1.5% chance of exploitation in the next 30 days.

Logstash versions prior to 2.3.3, when using the Netflow Codec plugin, a remote attacker crafting malicious Netflow v5, Netflow v9 or IPFIX packets could perform a denial of service attack on the Logstash instance. The errors resulting from these crafted inputs are not handled by the codec and can cause the Logstash process to exit.

Affected products

• Elastic Logstash: up to and including 2.3.2

Published 2017-06-16. Last modified 2026-06-17.