CVE-2022-31806

Name: CVE-2022-31806
Creator: NVD / NIST
Published: 2022-06-24T08:15:07.65+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 1.12%

Last modified Jun 17, 2026

CVE-2022-31806 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. In CODESYS V2 PLCWinNT and Runtime Toolkit 32 in versions prior to V2.4.7.57 password protection is not enabled by default and there is no information or prompt to enable password protection at login in case no password is set at the controller.. EPSS estimates a 1.12% chance of exploitation in the next 30 days.

Description

In CODESYS V2 PLCWinNT and Runtime Toolkit 32 in versions prior to V2.4.7.57 password protection is not enabled by default and there is no information or prompt to enable password protection at login in case no password is set at the controller.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

1.12%

62.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-1188

Affected Software

Vendor	Product	Versions
Codesys	Plcwinnt	< 2.4.7.57
Codesys	Runtime Toolkit	< 2.4.7.57

References

Timeline

Published: Jun 24, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-31806?

How severe is CVE-2022-31806?

CVE-2022-31806 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.12% probability of exploitation in the next 30 days.

How do I fix CVE-2022-31806?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-31806?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST