CVE-2024-6601

Race condition in permission assignment

At a glance

Severity: MEDIUM 4.7
EPSS: EPSS 0.39 % · percentile 33 (2026-10-27)
State: PUBLISHED
Published: 2024-07-09
Updated: 2025-10-30
Assigner: mozilla
NVD status: Analyzed

Description

A race condition could lead to a cross-origin container obtaining permissions of the top-level origin. This vulnerability affects Firefox < 128, Firefox ESR < 115.13, Thunderbird < 115.13, and Thunderbird < 128.

Scores

Version	Score	Vector	Scored by
CVSS 3.1	MEDIUM 4.7	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L	CISA-ADP
CVSS 3.1	MEDIUM 4.7	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L	NVD · 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

Weaknesses (CWE)

CWE-367

European references

ENISA EUVD · EUVD-2024-47996
GCVE · GCVE-0-2024-6601

CERT-FR advisories

CERTFR-2024-AVI-0588 — Multiples vulnérabilités dans Mozilla Thunderbird · cert.ssi.gouv.fr
CERTFR-2024-AVI-0555 — Multiples vulnérabilités dans les produits Mozilla · cert.ssi.gouv.fr

Affected configurations (NVD CPE)

cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* < 128.0
cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:* < 128.0
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* < 128.0

Affected products

Product	Versions
Mozilla · Firefox	affected unspecified < 128
Mozilla · Firefox ESR	affected unspecified < 115.13
Mozilla · Thunderbird	affected unspecified < 115.13
Mozilla · Thunderbird	affected unspecified < 128

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