Sandbox escape due to incorrect boundary conditions in the Telemetry component in External Software (Mozilla Firefox)
En bref
- Source
- NVD
- EPSS
- EPSS 0.56 % · centile 47 ()
- État
- PUBLISHED
- Publiée
- Mise à jour
- Attribuée par
- mozilla
- Statut NVD
- Modified
Description
Sandbox escape due to incorrect boundary conditions in the Telemetry component in External Software. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
Faiblesses (CWE)
- CWE-119 — Opération hors des limites d'un tampon mémoire
Références
- https://bugzilla.mozilla.org/show_bug.cgi?id=2015266
- https://www.mozilla.org/security/advisories/mfsa2026-13/
- https://www.mozilla.org/security/advisories/mfsa2026-14/
- https://www.mozilla.org/security/advisories/mfsa2026-15/
- https://www.mozilla.org/security/advisories/mfsa2026-16/
- https://www.mozilla.org/security/advisories/mfsa2026-17/
- https://access.redhat.com/security/cve/CVE-2026-2776
- https://bugzilla.redhat.com/show_bug.cgi?id=2442291
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-2776.json
- https://access.redhat.com/errata/RHSA-2026:3984
- https://access.redhat.com/errata/RHSA-2026:3976
- https://access.redhat.com/errata/RHSA-2026:4260
- https://access.redhat.com/errata/RHSA-2026:3361
- https://access.redhat.com/errata/RHSA-2026:3517
- https://access.redhat.com/errata/RHSA-2026:3338
- https://access.redhat.com/errata/RHSA-2026:3515
- https://access.redhat.com/errata/RHSA-2026:3492
- https://access.redhat.com/errata/RHSA-2026:4432
- https://access.redhat.com/errata/RHSA-2026:3491
- https://access.redhat.com/errata/RHSA-2026:3980
- https://access.redhat.com/errata/RHSA-2026:3495
- https://access.redhat.com/errata/RHSA-2026:3979
- https://access.redhat.com/errata/RHSA-2026:3494
- https://access.redhat.com/errata/RHSA-2026:4022
- https://access.redhat.com/errata/RHSA-2026:3493
- https://access.redhat.com/errata/RHSA-2026:3983
- https://access.redhat.com/errata/RHSA-2026:4152
- https://access.redhat.com/errata/RHSA-2026:3978
- https://access.redhat.com/errata/RHSA-2026:3496
- https://access.redhat.com/errata/RHSA-2026:3981
- https://access.redhat.com/errata/RHSA-2026:3497
- https://access.redhat.com/errata/RHSA-2026:3982
- https://access.redhat.com/errata/RHSA-2026:3339
- https://access.redhat.com/errata/RHSA-2026:3516
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-2026-8498
- GCVE · GCVE-0-2026-2776
Avis du CERT-FR
- CERTFR-2026-AVI-0204 — Multiples vulnérabilités dans les produits Mozilla · cert.ssi.gouv.fr
Configurations affectées (CPE NVD)
cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*< 115.33.0cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*< 148.0cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*≥ 128.0 < 140.8.0cpe:2.3:a:mozilla:thunderbird:*:*:*:*:esr:*:*:*< 140.8.0cpe:2.3:a:mozilla:thunderbird:*:*:*:*:-:*:*:*< 148.0
Produits affectés
| Produit | Versions |
|---|---|
| Mozilla · Firefox | unaffected 115.33 ≤ 115.* ; unaffected 140.8 ≤ 140.* ; unaffected 148 ≤ * |
| Mozilla · Thunderbird | unaffected 140.8 ≤ 140.* ; unaffected 148 ≤ * |
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 |