CVE-2025-7971

CVE-2025-7971 is a high-severity vulnerability with a CVSS 4.0 base score of 7.3. 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-20.

Key facts

Description

A security issues exists within Studio 5000 Logix Designer due to unsafe handling of environment variables. If the specified path lacks a valid file, Logix Designer crashes; However, it may be possible to execute malicious code without triggering a crash.

Frequently asked questions

What is CVE-2025-7971?
A security issues exists within Studio 5000 Logix Designer due to unsafe handling of environment variables. If the specified path lacks a valid file, Logix Designer crashes; However, it may be possible to execute malicious code without triggering a crash.
How severe is CVE-2025-7971?
CVE-2025-7971 has a CVSS 4.0 base score of 7.3, rated high severity.
Is CVE-2025-7971 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (2nd percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-7971?
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-2025-7971 have an EU (EUVD) identifier?
Yes. CVE-2025-7971 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-24827.
When was CVE-2025-7971 published?
CVE-2025-7971 was published on 2025-08-14 and last updated on 2026-06-17.

References

Other CWE-20 (Improper Input Validation) vulnerabilities

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