Is CVE-2021-43937 actively exploited?

No active exploitation of CVE-2021-43937 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2021-43937 be exploited remotely?

Yes. CVE-2021-43937 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2021-43937?

CVE-2021-43937 has a CVSS score of 8.8 (HIGH).

HOME VULNERABILITIESCVE-2021-43937

HIGH

CVE-2021-43937

CWE-200Published: April 29, 2022· Updated: Jun 17, 2026

8.8

CVSS v3.1

Official Description

Elcomplus SmartPTT SCADA Server web application does not, or cannot, sufficiently verify whether a well-formed, valid, consistent request was intentionally provided by the user who submitted the request.

NVD Source

Technical Analysis

CVE-2021-43937 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

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 8.8.

From a weakness classification perspective (CWE-200): Information exposure vulnerabilities leak sensitive data to unauthorized actors.