CVE-2023-6205
At a glance
- Severity
- Not available
- EPSS
- EPSS 0.87 % · percentile 59 (2026-10-27)
- State
- PUBLISHED
- Published
- Updated
- Assigner
- mozilla
- NVD status
- Modified
Description
It was possible to cause the use of a MessagePort after it had already been freed, which could potentially have led to an exploitable crash. This vulnerability affects Firefox < 120, Firefox ESR < 115.5.0, and Thunderbird < 115.5.
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H | NVD · nvd@nist.gov (Primary) |
Weaknesses (CWE)
European references
- ENISA EUVD · EUVD-2023-58452
- GCVE · GCVE-0-2023-6205
CERT-FR advisories
- CERTFR-2023-AVI-0969 — Multiples vulnérabilités dans les produits Mozilla · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*< 120.0cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*< 115.5.0cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*< 115.5cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*cpe:2.3:o:debian:debian_linux:12.0:*:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| Mozilla · Firefox | affected unspecified < 120 |
| Mozilla · Firefox ESR | affected unspecified < 115.5.0 |
| Mozilla · Thunderbird | affected unspecified < 115.5 |
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1854076
- https://www.mozilla.org/security/advisories/mfsa2023-49/
- https://www.mozilla.org/security/advisories/mfsa2023-50/
- https://www.mozilla.org/security/advisories/mfsa2023-52/
- https://www.debian.org/security/2023/dsa-5561
- https://lists.debian.org/debian-lts-announce/2023/11/msg00017.html
- https://lists.debian.org/debian-lts-announce/2023/11/msg00030.html
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 |