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CVE

CVE-2020-12069

In CODESYS V3 products in all versions prior V3.5.16.0 containing the CmpUserMgr, the CODESYS Control runtime system sto

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.

HIGH · CVSS 7.8 EPSS 0.0006
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-916Use of Password Hash With Insufficient Computational Effort
CWE-916Use of Password Hash With Insufficient Computational Effort
▤

Affected Products & Versions

57
pilz pmc>= 3.0.0 and < 3.5.17
codesys control for beaglebone< 3.5.16.0
codesys control for empc-a\/imx6< 3.5.16.0
codesys control for iot2000< 3.5.16.0
codesys control for linux< 3.5.16.0
codesys control for pfc100< 3.5.16.0
codesys control for pfc200< 3.5.16.0
codesys control for plcnext< 3.5.16.0
▣

Scoring & Timeline

7.8
HIGH · CVSS v3.1 · info@cert.vde.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD26 Dec 2022 · 07:15 PM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

2
cisa-csafcisa-csaf-csaf_files-OT-white-2025-icsa-25-273-04
cisa-csafcisa-csaf-csaf_files-OT-white-2026-icsa-26-076-01
🔗

References & Sources

4
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://cert.vde.com/en/advisories/VDE-2021-061/Third Party Advisory
https://cert.vde.com/en/advisories/VDE-2022-022/Third Party Advisory
https://cert.vde.com/en/advisories/VDE-2022-031/Third Party Advisory
https://customers.codesys.com/index.php?eID=dumpFile&t=f&f=12943&token=d097958a67ba382de688916f77e3013c0802fade&download=Vendor Advisory
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