Is CVE-2020-3943 actively exploited?

No active exploitation of CVE-2020-3943 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2020-3943 be exploited remotely?

Yes. CVE-2020-3943 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2020-3943?

CVE-2020-3943 has a CVSS score of 9.8 (CRITICAL).

HOME VULNERABILITIESCVE-2020-3943

CRITICAL

CVE-2020-3943

NVD-CWE-noinfoPublished: February 19, 2020· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

vRealize Operations for Horizon Adapter (6.7.x prior to 6.7.1 and 6.6.x prior to 6.6.1) uses a JMX RMI service which is not securely configured. An unauthenticated remote attacker who has network access to vRealize Operations, with the Horizon Adapter running, may be able to execute arbitrary code in vRealize Operations.

NVD Source

Technical Analysis

CVE-2020-3943 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.