How severe is CVE-2025-45769?

CVE-2025-45769 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2025-45769 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-2025-45769?

CVE-2025-45769 affects Google Firebase Php-jwt. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-45769?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-45769 have an EU (EUVD) identifier?

Yes. CVE-2025-45769 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-23305.

When was CVE-2025-45769 published?

CVE-2025-45769 was published on 2025-07-31 and last updated on 2026-06-17.

CVE-2025-45769

CVE-2025-45769 is a medium-severity vulnerability in Google Firebase Php-jwt with a CVSS 3.x base score of 6.5. 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-326.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
EPSS exploit prediction: 0% (3rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-23305
Weakness: CWE-326
Affected product: Google Firebase Php-jwt
Published: 2025-07-31
Last modified: 2026-06-17

Description

php-jwt v6.11.0 was discovered to contain weak encryption. NOTE: this issue has been disputed on the basis that key lengths are expected to be set by an application, not by this library. This dispute is subject to review under CNA rules 4.1.4, 4.1.14, and other rules; the dispute tagging is not meant to recommend an outcome for this CVE Record.

Frequently asked questions

What is CVE-2025-45769?: php-jwt v6.11.0 was discovered to contain weak encryption. NOTE: this issue has been disputed on the basis that key lengths are expected to be set by an application, not by this library. This dispute is subject to review under CNA rules 4.1.4, 4.1.14, and other rules; the dispute tagging is not meant to recommend an outcome for this CVE Record.
How severe is CVE-2025-45769?: CVE-2025-45769 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2025-45769 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-2025-45769?: CVE-2025-45769 affects Google Firebase Php-jwt. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-45769?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-45769 have an EU (EUVD) identifier?: Yes. CVE-2025-45769 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-23305.
When was CVE-2025-45769 published?: CVE-2025-45769 was published on 2025-07-31 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:google:firebase_php-jwt:*:*:*:*:*:*:*:*

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