How severe is CVE-2022-1794?

CVE-2022-1794 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2022-1794 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (11th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-1794?

CVE-2022-1794 affects Codesys Opc Da Server. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-1794?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2022-1794 published?

CVE-2022-1794 was published on 2022-07-11 and last updated on 2026-06-17.

CVE-2022-1794

CVE-2022-1794 is a medium-severity vulnerability in Codesys Opc Da Server with a CVSS 3.x base score of 5.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-522.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
CVSS v2: 4.7
EPSS exploit prediction: 0% (11th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-522
Affected product: Codesys Opc Da Server
Published: 2022-07-11
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2022-1794?: 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.
How severe is CVE-2022-1794?: CVE-2022-1794 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2022-1794 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (11th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-1794?: CVE-2022-1794 affects Codesys Opc Da Server. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-1794?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2022-1794 published?: CVE-2022-1794 was published on 2022-07-11 and last updated on 2026-06-17.

References

https://customers.codesys.com/index.php?eID=dumpFile&t=f&f=17129&token=1c1485c4a700c04f2069699f5be7558d276ca117&download=

Affected products (1)

cpe:2.3:a:codesys:opc_da_server:*:*:*:*:*:*:*:*

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