CVE-2020-12405
5.3
MEDIUM
CVSS 3.1
EPSS 0.54%
Description
When browsing a malicious page, a race condition in our SharedWorkerService could occur and lead to a potentially exploitable crash. This vulnerability affects Thunderbird < 68.9.0, Firefox < 77, and Firefox ESR < 68.9.
How to fix CVE-2020-12405
To remediate CVE-2020-12405, upgrade the affected package to a fixed version below.
- Debian/firefox-esr—upgrade to 68.9.0esr-1 or later
- Debian/thunderbird—upgrade to 1:68.9.0-1 or later
Is CVE-2020-12405 being exploited?
Low — EPSS is 0.5%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 68.9.0esr-1
- from 0, < 1:68.9.0-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.3 | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H |