How severe is CVE-2025-27845?

CVE-2025-27845 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-27845 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-27845?

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

Does CVE-2025-27845 have an EU (EUVD) identifier?

Yes. CVE-2025-27845 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-24834.

When was CVE-2025-27845 published?

CVE-2025-27845 was published on 2025-08-14 and last updated on 2026-06-17.

CVE-2025-27845

CVE-2025-27845 is a critical-severity vulnerability with a CVSS 3.x base score of 9.8. 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-200.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 0% (32nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-24834
Weakness: CWE-200
Published: 2025-08-14
Last modified: 2026-06-17

Description

In ESPEC North America Web Controller 3 before 3.3.4, /api/v4/auth/ with any invalid authentication request results in exposing a JWT secret. This allows for elevated permissions to the UI.

Frequently asked questions

What is CVE-2025-27845?: In ESPEC North America Web Controller 3 before 3.3.4, /api/v4/auth/ with any invalid authentication request results in exposing a JWT secret. This allows for elevated permissions to the UI.
How severe is CVE-2025-27845?: CVE-2025-27845 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-27845 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-27845?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2025-27845 have an EU (EUVD) identifier?: Yes. CVE-2025-27845 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-24834.
When was CVE-2025-27845 published?: CVE-2025-27845 was published on 2025-08-14 and last updated on 2026-06-17.

References

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