VULNERABILITY INTELLIGENCE

CVE-2021-29962

CVSS score4.3 MEDIUM

EPSS probability0.74%

CISA KEVNot currently listed

Published2021-06-24

Last modified2026-06-17

CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

Description

Firefox for Android would become unstable and hard-to-recover when a website opened too many popups. *This bug only affects Firefox for Android. Other operating systems are unaffected.*. This vulnerability affects Firefox < 89.

Weakness classification

nvd@nist.gov: CWE-404

Primary references

security@mozilla.org — Permissions Required, Vendor Advisory
security@mozilla.org — Release Notes, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 — Permissions Required, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 — Release Notes, Vendor Advisory