Sandbox escape due to incorrect boundary conditions, integer overflow in the XPCOM component (Mozilla Firefox)
En bref
- Source
- NVD
- EPSS
- EPSS 0.69 % · centile 53 ()
- État
- PUBLISHED
- Publiée
- Mise à jour
- Attribuée par
- mozilla
- Statut NVD
- Modified
Description
Sandbox escape due to incorrect boundary conditions, integer overflow in the XPCOM component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
Faiblesses (CWE)
- CWE-120 — Copie de tampon sans vérification de taille (débordement classique)
- CWE-190 — Débordement d'entier
- CWE-754 — Vérification incorrecte de conditions inhabituelles ou exceptionnelles
Références
- https://bugzilla.mozilla.org/show_bug.cgi?id=2016374
- https://www.mozilla.org/security/advisories/mfsa2026-20/
- https://www.mozilla.org/security/advisories/mfsa2026-21/
- https://www.mozilla.org/security/advisories/mfsa2026-22/
- https://www.mozilla.org/security/advisories/mfsa2026-23/
- https://www.mozilla.org/security/advisories/mfsa2026-24/
- https://access.redhat.com/security/cve/CVE-2026-4689
- https://bugzilla.redhat.com/show_bug.cgi?id=2450718
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-4689.json
- https://access.redhat.com/errata/RHSA-2026:8427
- https://access.redhat.com/errata/RHSA-2026:7843
- https://access.redhat.com/errata/RHSA-2026:8315
- https://access.redhat.com/errata/RHSA-2026:5931
- https://access.redhat.com/errata/RHSA-2026:6342
- https://access.redhat.com/errata/RHSA-2026:5932
- https://access.redhat.com/errata/RHSA-2026:6917
- https://access.redhat.com/errata/RHSA-2026:7840
- https://access.redhat.com/errata/RHSA-2026:8285
- https://access.redhat.com/errata/RHSA-2026:7858
- https://access.redhat.com/errata/RHSA-2026:8850
- https://access.redhat.com/errata/RHSA-2026:7842
- https://access.redhat.com/errata/RHSA-2026:8289
- https://access.redhat.com/errata/RHSA-2026:7838
- https://access.redhat.com/errata/RHSA-2026:8288
- https://access.redhat.com/errata/RHSA-2026:7839
- https://access.redhat.com/errata/RHSA-2026:8286
- https://access.redhat.com/errata/RHSA-2026:7841
- https://access.redhat.com/errata/RHSA-2026:8287
- https://access.redhat.com/errata/RHSA-2026:7845
- https://access.redhat.com/errata/RHSA-2026:8290
- https://access.redhat.com/errata/RHSA-2026:7837
- https://access.redhat.com/errata/RHSA-2026:8284
- https://access.redhat.com/errata/RHSA-2026:5930
- https://access.redhat.com/errata/RHSA-2026:6188
Scores
| Version | Score | Vecteur | Évalué par |
|---|---|---|---|
| CVSS 3.1 | CRITICAL 10.0 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H | CISA-ADP |
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H | redhat-SADP |
| CVSS 3.1 | CRITICAL 10.0 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H | NVD · nvd@nist.gov (Primary) |
| CVSS 3.1 | CRITICAL 10.0 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H | NVD · 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary) |
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H | NVD · 0b0ca135-0b70-47e7-9f44-1890c2a1c46c (Secondary) |
Références européennes
- ENISA EUVD · EUVD-2026-14802
- GCVE · GCVE-0-2026-4689
Avis du CERT-FR
- CERTFR-2026-AVI-0354 — Multiples vulnérabilités dans les produits Mozilla · cert.ssi.gouv.fr
Configurations affectées (CPE NVD)
cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*< 115.34.0cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*< 149.0cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*≥ 128.0 < 140.9.0cpe:2.3:a:mozilla:thunderbird:*:*:*:*:esr:*:*:*< 140.9.0cpe:2.3:a:mozilla:thunderbird:*:*:*:*:-:*:*:*< 149.0
Produits affectés
| Produit | Versions |
|---|---|
| Mozilla · Firefox | unaffected 115.34 ≤ 115.* ; unaffected 140.9 ≤ 140.* ; unaffected 149 ≤ * |
| Mozilla · Thunderbird | unaffected 140.9 ≤ 140.* ; unaffected 149 ≤ * |
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 |