CVE-2020-24231

Name: CVE-2020-24231
Creator: NVD / NIST
Published: 2020-10-05T16:15:12.347+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 1.73%

Last modified Jun 17, 2026

CVE-2020-24231 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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. EPSS estimates a 1.73% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

1.73%

74.7th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Jumpmind	Symmetricds	< 3.12.0

References

https://www.symmetricds.org/issues/view.php?id=4263Vendor Advisory
https://www.symmetricds.org/issues/view.php?id=4263Vendor Advisory

Timeline

Published: Oct 5, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-24231?

How severe is CVE-2020-24231?

CVE-2020-24231 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.73% probability of exploitation in the next 30 days.

How do I fix CVE-2020-24231?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-24231?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST