CVE-2024-3859

At a glance

Severity: MEDIUM 5.9
EPSS: EPSS 0.67 % · percentile 52 (2026-10-27)
State: PUBLISHED
Published: 2024-04-16
Updated: 2024-08-01
Assigner: mozilla
NVD status: Analyzed

Description

On 32-bit versions there were integer-overflows that led to an out-of-bounds-read that potentially could be triggered by a malformed OpenType font. This vulnerability affects Firefox < 125, Firefox ESR < 115.10, and Thunderbird < 115.10.

Scores

Version	Score	Vector	Scored by
CVSS 3.1	MEDIUM 5.9	CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:H/A:N	CISA-ADP
CVSS 3.1	MEDIUM 5.9	CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:H/A:N	NVD · 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

Weaknesses (CWE)

European references

ENISA EUVD · EUVD-2024-32427
GCVE · GCVE-0-2024-3859

CERT-FR advisories

CERTFR-2024-AVI-0337 — Multiples vulnérabilités dans Mozilla Thunderbird · cert.ssi.gouv.fr
CERTFR-2024-AVI-0311 — Multiples vulnérabilités dans les produits Mozilla · cert.ssi.gouv.fr

Affected configurations (NVD CPE)

cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:* < 115.10
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* < 125.0
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* < 115.10
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*

Affected products

Product	Versions
Mozilla · Firefox	affected unspecified < 125
Mozilla · Firefox ESR	affected unspecified < 115.10
Mozilla · Thunderbird	affected unspecified < 115.10

References

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