CVE-2021-29965

5.3 mediumEPSS 0.7%

Medium (5.3) in mozilla firefox. EPSS 0.7% chance of exploitation in the next 30 days.

A malicious website that causes an HTTP Authentication dialog to be spawned could trick the built-in password manager to suggest passwords for the currently active website instead of the website that triggered the dialog. *This bug only affects Firefox for Android. Other operating systems are unaffected.*. This vulnerability affects Firefox < 89.

Severity

CVSS 3.1

5.3 medium

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

EPSS: 0.7% chance of exploitation in the next 30 days; higher than 54% of CVEs (scores of 2026-10-31)
CWE: CWE-610
Published: 2021-06-24
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

mozilla:firefox

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1709257
https://www.mozilla.org/security/advisories/mfsa2021-23/
https://bugzilla.mozilla.org/show_bug.cgi?id=1709257
https://www.mozilla.org/security/advisories/mfsa2021-23/

Check your stack JSON