CVE-2024-4777

At a glance

Severity: HIGH 7.5
EPSS: EPSS 0.54 % · percentile 45 (2026-10-27)
State: PUBLISHED
Published: 2024-05-14
Updated: 2025-03-13
Assigner: mozilla
NVD status: Modified

Description

Memory safety bugs present in Firefox 125, Firefox ESR 115.10, and Thunderbird 115.10. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 126, Firefox ESR < 115.11, and Thunderbird < 115.11.

Scores

Version	Score	Vector	Scored by
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	CISA-ADP
CVSS 3.1	HIGH 8.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H	NVD · nvd@nist.gov (Primary)
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 · 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

Weaknesses (CWE)

European references

ENISA EUVD · EUVD-2024-44370
GCVE · GCVE-0-2024-4777

CERT-FR advisories

CERTFR-2024-AVI-0396 — Multiples vulnérabilités dans les produits Mozilla · cert.ssi.gouv.fr

Affected configurations (NVD CPE)

cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:* < 115.11.0
cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:* < 126.0
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* < 115.11.0
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*

Affected products

Product	Versions
Mozilla · Firefox	affected unspecified < 126
Mozilla · Firefox ESR	affected unspecified < 115.11
Mozilla · Thunderbird	affected unspecified < 115.11

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