CVE-2020-24231: Jumpmind Symmetricds

Critical severity, CVSS 9.8. EPSS: 1.8% chance of exploitation in the next 30 days.

Symmetric DS <3.12.0 uses mx4j to provide access to JMX over HTTP. mx4j, by default, has no auth and is available on all interfaces. An attacker can interact with JMX: get system info, and invoke MBean methods. It is possible to install additional MBeans from a remote host using MLet that leads to arbitrary code execution.

Affected products

• Jumpmind Symmetricds: before 3.12.0 (fixed in 3.12.0)

Published 2020-10-05. Last modified 2026-06-17.