How severe is CVE-2025-49151?

CVE-2025-49151 has a CVSS 4.0 base score of 9.3, rated critical severity.

Is CVE-2025-49151 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-49151?

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-2025-49151 have an EU (EUVD) identifier?

Yes. CVE-2025-49151 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-19122.

When was CVE-2025-49151 published?

CVE-2025-49151 was published on 2025-06-25 and last updated on 2026-06-17.

CVE-2025-49151

CVE-2025-49151 is a critical-severity vulnerability with a CVSS 4.0 base score of 9.3. 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-547.

Key facts

Severity: Critical (CVSS 4.0 base score 9.3)
EPSS exploit prediction: 1% (41st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-19122
Weakness: CWE-547
Published: 2025-06-25
Last modified: 2026-06-17

Description

The affected products could allow an unauthenticated attacker to generate forged JSON Web Tokens (JWT) to bypass authentication.

Frequently asked questions

What is CVE-2025-49151?: The affected products could allow an unauthenticated attacker to generate forged JSON Web Tokens (JWT) to bypass authentication.
How severe is CVE-2025-49151?: CVE-2025-49151 has a CVSS 4.0 base score of 9.3, rated critical severity.
Is CVE-2025-49151 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-49151?: 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-2025-49151 have an EU (EUVD) identifier?: Yes. CVE-2025-49151 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-19122.
When was CVE-2025-49151 published?: CVE-2025-49151 was published on 2025-06-25 and last updated on 2026-06-17.

References

https://www.cisa.gov/news-events/ics-advisories/icsa-25-175-07

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