Is CVE-2021-43051 actively exploited?

No active exploitation of CVE-2021-43051 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2021-43051 be exploited remotely?

Yes. CVE-2021-43051 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2021-43051?

CVE-2021-43051 has a CVSS score of 6.8 (MEDIUM).

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MEDIUM

CVE-2021-43051

NVD-CWE-OtherPublished: December 14, 2021· Updated: Jun 17, 2026

6.8

CVSS v3.1

Official Description

The Spotfire Server component of TIBCO Software Inc.'s TIBCO Spotfire Server, TIBCO Spotfire Server, and TIBCO Spotfire Server contains a difficult to exploit vulnerability that allows malicious custom API clients with network access to execute internal API operations outside of the scope of those granted to it. A successful attack using this vulnerability requires human interaction from a person other than the attacker. Affected releases are TIBCO Software Inc.'s TIBCO Spotfire Server: versions 10.10.6 and below, TIBCO Spotfire Server: versions 11.0.0, 11.1.0, 11.2.0, 11.3.0, 11.4.0, and 11.4.1, and TIBCO Spotfire Server: versions 11.5.0 and 11.6.0.

NVD Source

Technical Analysis

CVE-2021-43051 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires high privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

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 6.8.