CVE-2020-12069

CODESYS V3 prone to Inadequate Password Hashing

Description

In CODESYS V3 products in all versions prior V3.5.16.0 containing the CmpUserMgr, the CODESYS Control runtime system stores the online communication passwords using a weak hashing algorithm. This can be used by a local attacker with low privileges to gain full control of the device.

Category

7.8
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.03%
Vendor Advisory codesys.com Vendor Advisory vde.com Vendor Advisory vde.com Vendor Advisory vde.com
Affected: CODESYS CODESYS V3 containing the CmpUserMgr
Published at:
Updated at:

References

Link Tags
https://customers.codesys.com/index.php?eID=dumpFile&t=f&f=12943&token=d097958a67ba382de688916f77e3013c0802fade&download= vendor advisory
https://cert.vde.com/en/advisories/VDE-2021-061/ third party advisory vendor advisory
https://cert.vde.com/en/advisories/VDE-2022-031/ third party advisory vendor advisory
https://cert.vde.com/en/advisories/VDE-2022-022/ third party advisory vendor advisory

Frequently Asked Questions

What is the severity of CVE-2020-12069?
CVE-2020-12069 has been scored as a high severity vulnerability.
How to fix CVE-2020-12069?
To fix CVE-2020-12069, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-12069 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-12069 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2020-12069?
CVE-2020-12069 affects CODESYS CODESYS V3 containing the CmpUserMgr.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.