Is CVE-2021-32926 actively exploited?

No active exploitation of CVE-2021-32926 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2021-32926 be exploited remotely?

Yes. CVE-2021-32926 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2021-32926?

CVE-2021-32926 has a CVSS score of 7.5 (HIGH).

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HIGH

CVE-2021-32926

CWE-300Published: June 3, 2021· Updated: Jun 17, 2026

7.5

CVSS v3.1

Official Description

When an authenticated password change request takes place, this vulnerability could allow the attacker to intercept the message that includes the legitimate, new password hash and replace it with an illegitimate hash. The user would no longer be able to authenticate to the controller (Micro800: All versions, MicroLogix 1400: Version 21 and later) causing a denial-of-service condition

NVD Source

Technical Analysis

CVE-2021-32926 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 availability disruption (denial of service), with a CVSS base score of 7.5.