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MEDIUM 6.5

CVE-2020-12421

When performing add-on updates, certificate chains terminating in non-built-in-roots were rejected (even if they were legitimately added by an administrator.) This could have caused add-ons to become out-of-date silently without notification to the user. This vulnerability affects Firefox ESR < 68.10, Firefox < 78, and Thunderbird < 68.10.0.

CVSS v3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
EPSS 1.1% percentile 78.1%

Affected tracked apps

Vulnerable CPE configurations

Vendor Product Platform Versions CPE 2.3 URI
mozilla thunderbird Windows <68.10.0 cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*
View on NVD ↗