How severe is CVE-2024-25191?

CVE-2024-25191 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-2024-25191 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-25191?

CVE-2024-25191 affects Zihanggao Php-jwt. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-25191?

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-2024-25191 have an EU (EUVD) identifier?

Yes. CVE-2024-25191 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-22527.

When was CVE-2024-25191 published?

CVE-2024-25191 was published on 2024-02-08 and last updated on 2026-06-17.

CVE-2024-25191

CVE-2024-25191 is a critical-severity vulnerability in Zihanggao Php-jwt 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-203.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 1% (55th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-22527
Weakness: CWE-203
Affected product: Zihanggao Php-jwt
Published: 2024-02-08
Last modified: 2026-06-17

Description

php-jwt 1.0.0 uses strcmp (which is not constant time) to verify authentication, which makes it easier to bypass authentication via a timing side channel.

Frequently asked questions

What is CVE-2024-25191?: php-jwt 1.0.0 uses strcmp (which is not constant time) to verify authentication, which makes it easier to bypass authentication via a timing side channel.
How severe is CVE-2024-25191?: CVE-2024-25191 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-2024-25191 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-25191?: CVE-2024-25191 affects Zihanggao Php-jwt. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-25191?: 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-2024-25191 have an EU (EUVD) identifier?: Yes. CVE-2024-25191 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-22527.
When was CVE-2024-25191 published?: CVE-2024-25191 was published on 2024-02-08 and last updated on 2026-06-17.

References

https://github.com/P3ngu1nW/CVE_Request/blob/main/cdoco%3Aphp-jwt.md

Affected products (1)

cpe:2.3:a:zihanggao:php-jwt:1.0.0:*:*:*:*:*:*:*

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CVE-2024-25190 — Critical (CVSS 9.8): l8w8jwt 2.2.1 uses memcmp (which is not constant time) to verify authentication, which makes it easier to bypass…
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