CVE-2021-29952

At a glance

Severity: Not available
EPSS: EPSS 0.74 % · percentile 54 (2026-10-27)
State: PUBLISHED
Published: 2021-06-24
Updated: 2024-08-03
Assigner: mozilla
NVD status: Modified

Description

When Web Render components were destructed, a race condition could have caused undefined behavior, and we presume that with enough effort may have been exploitable to run arbitrary code. This vulnerability affects Firefox < 88.0.1 and Firefox for Android < 88.1.3.

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	NVD · nvd@nist.gov (Primary)
CVSS 2.0	MEDIUM 5.1	AV:N/AC:H/Au:N/C:P/I:P/A:P	NVD · nvd@nist.gov (Primary)

Weaknesses (CWE)

CWE-362

European references

ENISA EUVD · EUVD-2021-16411
GCVE · GCVE-0-2021-29952

CERT-FR advisories

CERTFR-2021-AVI-349 — Multiples vulnérabilités dans Mozilla Firefox · cert.ssi.gouv.fr

Affected configurations (NVD CPE)

cpe:2.3:a:mozilla:firefox:*:*:*:*:*:-:*:* < 88.0.1
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:android:*:* < 88.1.3

Affected products

Product	Versions
Mozilla · Firefox	affected unspecified < 88.0.1
Mozilla · Firefox for Android	affected unspecified < 88.1.3

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