How severe is CVE-2020-12067?

CVE-2020-12067 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2020-12067 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-12067?

CVE-2020-12067 affects Pilz Pmc. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-12067?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2020-12067 published?

CVE-2020-12067 was published on 2022-12-26 and last updated on 2026-06-17.

CVE-2020-12067

CVE-2020-12067 is a high-severity vulnerability in Pilz Pmc with a CVSS 3.x base score of 7.5. 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-640.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (40th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-640
Affected product: Pilz Pmc
Published: 2022-12-26
Last modified: 2026-06-17

Description

In Pilz PMC programming tool 3.x before 3.5.17 (based on CODESYS Development System), a user's password may be changed by an attacker without knowledge of the current password.

Frequently asked questions

What is CVE-2020-12067?: In Pilz PMC programming tool 3.x before 3.5.17 (based on CODESYS Development System), a user's password may be changed by an attacker without knowledge of the current password.
How severe is CVE-2020-12067?: CVE-2020-12067 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2020-12067 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-12067?: CVE-2020-12067 affects Pilz Pmc. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-12067?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2020-12067 published?: CVE-2020-12067 was published on 2022-12-26 and last updated on 2026-06-17.

References

https://cert.vde.com/en/advisories/VDE-2021-061/

Affected products (1)

cpe:2.3:a:pilz:pmc:*:*:*:*:*:*:*:*

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