Is CVE-2021-21984 actively exploited?

No active exploitation of CVE-2021-21984 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2021-21984 be exploited remotely?

Yes. CVE-2021-21984 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2021-21984?

CVE-2021-21984 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2021-21984

CWE-862Published: May 7, 2021· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

VMware vRealize Business for Cloud 7.x prior to 7.6.0 contains a remote code execution vulnerability due to an unauthorised end point. A malicious actor with network access may exploit this issue causing unauthorised remote code execution on vRealize Business for Cloud Virtual Appliance.

NVD Source

Technical Analysis

CVE-2021-21984 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.