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CVE-2022-1794

Plaintext Storage of a password in CODESYS V3 OPC DA Server

MEDIUM
5.5
CVSS Score
Published: July 11, 2022 at 10:40 AM UTC
Updated: June 17, 2026 at 04:23 AM UTC
1 product affected across 1 vendorOpc Da Server· also runs on 1 platform

Using CODESYS OPC DA Server by CODESYS?

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.2%

Description

The CODESYS OPC DA Server prior V3.5.18.20 stores PLC passwords as plain text in its configuration file so that it is visible to all authorized Microsoft Windows users of the system.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Opc Da Server· Codesys
95%
3.0.0 ≤ v < 3.5.18.20V3 ≤ v ≤ V3.5.18.203
Affected range stops below 3.5.18.20, so it looks safe — our inference, not a vendor statement
microsoft-windows (environment)

Runs on — not affected

The affected product only carries this flaw when running on these platforms. The platforms themselves are not vulnerable.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

x_refsource_CONFIRMVendor Advisory
Source: [email protected]
https://customers.codesys.com/index.php?eID=dumpFile&t=f&f=17129&token=1c1485c4a700c04f2069699f5be7558d276ca117&download=

CVSS

5.5MEDIUMCERTVDE
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-256CWE-522

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