CVE-2022-1794
Plaintext Storage of a password in CODESYS V3 OPC DA Server
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.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
Plaintext Storage of a password in CODESYS V3 OPC DA Server
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.
- Record
CVE-2022-1794- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-256
- Updated
- 2026-11-02
EUVDEUVD-2022-25074
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.
- Record
EUVD-2022-25074- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-w7rj-j5f6-772g
The CODESYS OPC DA Server prior V3.5.18.20 stores PLC passwords as plain text in its...
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.
- Record
GHSA-w7rj-j5f6-772g- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-256, CWE-522
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2022-1794- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - CVSS 2.0
- 4.7 Medium
AV:L/AC:M/Au:N/C:C/I:N/A:N - Weakness
- CWE-256, CWE-522
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2022-1794 is a medium vulnerability (CVSS 5.5) in Codesys Opc Da Server, published July 11, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.21%, the 11th percentile. No source names a fixed version.