Use-after-free in the Audio/Video component (Mozilla Firefox)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.22 % · percentile 12 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- mozilla
- NVD status
- Analyzed
Description
Use-after-free in the Audio/Video component. This vulnerability was fixed in Firefox 155, Firefox ESR 115.40, Firefox ESR 140.15, Firefox ESR 153.2, Thunderbird 155, Thunderbird 140.15, and Thunderbird 153.2.
Weaknesses (CWE)
- CWE-416 — Use After Free
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=2058911
- https://www.mozilla.org/security/advisories/mfsa2026-82/
- https://www.mozilla.org/security/advisories/mfsa2026-83/
- https://www.mozilla.org/security/advisories/mfsa2026-84/
- https://www.mozilla.org/security/advisories/mfsa2026-85/
- https://www.mozilla.org/security/advisories/mfsa2026-86/
- https://www.mozilla.org/security/advisories/mfsa2026-87/
- https://www.mozilla.org/security/advisories/mfsa2026-88/
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 5.4 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N | CISA-ADP |
| CVSS 3.1 | MEDIUM 5.4 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N | NVD · 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary) |
European references
- ENISA EUVD · EUVD-2026-69065
- GCVE · GCVE-0-2026-84120
CERT-FR advisories
- CERTFR-2026-AVI-1106 — Multiples vulnérabilités dans les produits Mozilla · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*< 115.40.0cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*≥ 116.0 < 140.15.0cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*≥ 141.0.0 < 153.2.0cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*≥ 154.0.0 < 155.0.0cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*< 140.15.0cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*≥ 141.0 < 153.2.0cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*≥ 154.0 < 155.0
Affected products
| Product | Versions |
|---|---|
| Mozilla · Firefox | unaffected 115.40 ≤ 115.* ; unaffected 140.15 ≤ 140.* ; unaffected 153.2 ≤ 153.* ; unaffected 155 ≤ * |
| Mozilla · Thunderbird | unaffected 140.15 ≤ 140.* ; unaffected 153.2 ≤ 153.* ; unaffected 155 ≤ * |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |