How severe is CVE-2025-4040?

CVE-2025-4040 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity low, and availability none.

Is CVE-2025-4040 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (20th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-4040?

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-2025-4040 have an EU (EUVD) identifier?

Yes. CVE-2025-4040 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-22082.

When was CVE-2025-4040 published?

CVE-2025-4040 was published on 2025-07-21 and last updated on 2026-06-17.

CVE-2025-4040

CVE-2025-4040 is a high-severity vulnerability with a CVSS 3.x base score of 7.1. 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-639.

Key facts

Severity: High (CVSS 3.x base score 7.1)
EPSS exploit prediction: 0% (20th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-22082
Weakness: CWE-639
Published: 2025-07-21
Last modified: 2026-06-17

Description

Authorization Bypass Through User-Controlled Key vulnerability in Turpak Automatic Station Monitoring System allows Privilege Escalation. This issue affects Automatic Station Monitoring System: before 5.0.6.51.

Frequently asked questions

What is CVE-2025-4040?: Authorization Bypass Through User-Controlled Key vulnerability in Turpak Automatic Station Monitoring System allows Privilege Escalation. This issue affects Automatic Station Monitoring System: before 5.0.6.51.
How severe is CVE-2025-4040?: CVE-2025-4040 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity low, and availability none.
Is CVE-2025-4040 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (20th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-4040?: 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-2025-4040 have an EU (EUVD) identifier?: Yes. CVE-2025-4040 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-22082.
When was CVE-2025-4040 published?: CVE-2025-4040 was published on 2025-07-21 and last updated on 2026-06-17.

References

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