How severe is CVE-2025-41700?

CVE-2025-41700 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-41700 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (3rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-41700?

CVE-2025-41700 affects Codesys. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-41700?

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.

Does CVE-2025-41700 have an EU (EUVD) identifier?

Yes. CVE-2025-41700 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-199974.

When was CVE-2025-41700 published?

CVE-2025-41700 was published on 2025-12-01 and last updated on 2026-06-17.

CVE-2025-41700

CVE-2025-41700 is a high-severity vulnerability in Codesys with a CVSS 3.x base score of 7.8. 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-502.

Key facts

Severity: High (CVSS 3.x base score 7.8)
EPSS exploit prediction: 0% (3rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-199974
Weakness: CWE-502
Affected product: Codesys
Published: 2025-12-01
Last modified: 2026-06-17

Description

An unauthenticated attacker can trick a local user into executing arbitrary code by opening a deliberately manipulated CODESYS project file with a CODESYS development system. This arbitrary code is executed in the user context.

Frequently asked questions

What is CVE-2025-41700?: An unauthenticated attacker can trick a local user into executing arbitrary code by opening a deliberately manipulated CODESYS project file with a CODESYS development system. This arbitrary code is executed in the user context.
How severe is CVE-2025-41700?: CVE-2025-41700 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-41700 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (3rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-41700?: CVE-2025-41700 affects Codesys. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-41700?: 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.
Does CVE-2025-41700 have an EU (EUVD) identifier?: Yes. CVE-2025-41700 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-199974.
When was CVE-2025-41700 published?: CVE-2025-41700 was published on 2025-12-01 and last updated on 2026-06-17.

References

https://certvde.com/de/advisories/VDE-2025-101

Affected products (1)

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

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