Is CVE-2021-32943 actively exploited?

No active exploitation of CVE-2021-32943 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2021-32943 be exploited remotely?

Yes. CVE-2021-32943 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2021-32943?

CVE-2021-32943 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2021-32943

CWE-121Published: August 10, 2021· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

The affected product is vulnerable to a stack-based buffer overflow, which may allow an attacker to remotely execute arbitrary code on the WebAccess/SCADA (WebAccess/SCADA versions prior to 8.4.5, WebAccess/SCADA versions prior to 9.0.1).

NVD Source

Technical Analysis

CVE-2021-32943 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.