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Vulnerability · NVD

CVE-2020-12421

CVE-2020-12421, medium severity (CVSS 6.5): 2 tracked apps concerned, all fixed or indeterminable on their current version.

Severity (CVSS)
6.5

NVD scale

Exploitation
1.8 %

EPSS, predicted over 30 days

Tracked apps
2
Still exposed
0

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 This could have caused add-ons to become out-of-date silently without notification to the user.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.

Attack vector : Network No privileges required
Show raw CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
EPSS 1.84% above median percentile 78.2%

Tracked apps referencing this CVE

For each app: the affected range, the fixing version, and where the tracked app stands today.

Vulnerable CPE configurations (2)
Vendor Product Versions
mozilla firefox
All platforms (wildcard)
<78.0
mozilla thunderbird
All platforms (wildcard)
<68.10.0
View on NVD ↗ Advisory · bugzilla.mozilla.org Advisory · www.mozilla.org

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