Is CVE-2020-24231 actively exploited?

No active exploitation of CVE-2020-24231 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2020-24231 be exploited remotely?

Yes. CVE-2020-24231 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2020-24231?

CVE-2020-24231 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2020-24231

NVD-CWE-noinfoPublished: October 5, 2020· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official 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.

NVD Source

Technical Analysis

CVE-2020-24231 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.