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Vulnerability record · CVE-2025-11153 · published 30 September 2025

CVE-2025-11153: Mozilla firefox code injection vulnerability

Mozilla · Firefox

JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 143.0.3.

7.5 CVSS 3.1 High EPSS 0.23% · top 87.3% CWE-94 · Code injection
7.5CVSS 3.1 base score
0.23%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 143.0.3.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://bugzilla.mozilla.org/show_bug.cgi?id=1987481 Issue TrackingPermissions Required
https://www.mozilla.org/security/advisories/mfsa2025-80/ Vendor Advisory

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2025-11153), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.