cve.bz

CVE-2021-29971

9.8 criticalEPSS 1.0%

Critical (9.8) in mozilla firefox. EPSS 1.0% chance of exploitation in the next 30 days.

If a user had granted a permission to a webpage and saved that grant, any webpage running on the same host - irrespective of scheme or port - would be granted that permission. *This bug only affects Firefox for Android. Other operating systems are unaffected.*. This vulnerability affects Firefox < 90.

Severity

CVSS 3.1

9.8 critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
1.0% chance of exploitation in the next 30 days; higher than 63% of CVEs (scores of 2026-10-31)
CWE
CWE-281
Published
Modified
Record from
the NVD, synced

Affected

References

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