Description
A lock was missing when accessing a data structure and importing certificate information into the trust database. This vulnerability affects Firefox < 80 and Firefox for Android < 80.
Affected products
mozilla: firefox; mozilla: firefox mobile
References6
- bugzilla.mozilla.org/show_bug.cgi?id=1651520 Issue TrackingPermissions RequiredVendor Advisory
- www.mozilla.org/security/advisories/mfsa2020-36/ Release NotesVendor Advisory
- www.mozilla.org/security/advisories/mfsa2020-39/ Release NotesVendor Advisory
- bugzilla.mozilla.org/show_bug.cgi?id=1651520 Issue TrackingPermissions RequiredVendor Advisory
- www.mozilla.org/security/advisories/mfsa2020-36/ Release NotesVendor Advisory
- www.mozilla.org/security/advisories/mfsa2020-39/ Release NotesVendor Advisory
Metrics
- CVSS 3.1
-
4.3
MEDIUM
Score source: NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N - EPSS — exploit probability
- 1% percentile: 46 · as of 11 November 2026
- CWE
- CWE-667
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