CVE-2025-45769

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.14% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 3.6% of scored records. A rank, not a probability.

NVD base score

6.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2025-07-31 00:00Z1 YR AGO

Last updated

2026-02-18 21:34Z6 MO AGO

Reserved

2025-04-22

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Medium (CVSS 6.5)

CNA CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Weaknesses

• CWE-326Inadequate Encryption StrengthClass

Data version

5.2

Document digest

1f1943bd0b2e52f8067e5542c7b4be30b2a03e093a9477fd464e214b5f49aca6

• github.comhttps://github.com/firebase/php-jwt
• github.comhttps://github.com/firebase
• gist.github.comhttps://gist.github.com/ZupeiNie/83756316c4c24fe97a50176a92608db3
• github.comhttps://github.com/firebase/php-jwt/issues/620
• github.comhttps://github.com/github/advisory-database/pull/6954
• github.comhttps://github.com/advisories/GHSA-2x45-7fc3-mxwq
• github.comhttps://github.com/firebase/php-jwt/releases/tag/v7.0.0
• github.comhttps://github.com/firebase/php-jwt/pull/613