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Vulnerability record · CVE-2025-13014 · published 11 November 2025

CVE-2025-13014: Mozilla firefox use after free vulnerability

Mozilla · Firefox

Use-after-free in the Audio/Video component. This vulnerability was fixed in Firefox 145, Firefox ESR 140.5, Firefox ESR 115.30, Thunderbird 145, and Thunderbird 140.5.

8.8 CVSS 3.1 High EPSS 0.30% · top 80.1% CWE-416 · Use after free
8.8CVSS 3.1 base score
0.30%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References
17 Jun 2026Last modified by NVD

Description

Use-after-free in the Audio/Video component. This vulnerability was fixed in Firefox 145, Firefox ESR 140.5, Firefox ESR 115.30, Thunderbird 145, and Thunderbird 140.5.

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

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=1994241 Permissions Required
https://www.mozilla.org/security/advisories/mfsa2025-87/ Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2025-88/ Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2025-89/ Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2025-90/
https://www.mozilla.org/security/advisories/mfsa2025-91/

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Related vulnerabilities

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

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Source: NIST National Vulnerability Database (record CVE-2025-13014), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.