vulnerability
MFSA2020-21 Firefox: Security Vulnerabilities fixed in Firefox ESR 68.9 (CVE-2020-12399)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 1 | (AV:L/AC:H/Au:N/C:P/I:N/A:N) | Jun 2, 2020 | Jun 3, 2020 | Feb 10, 2026 |
Severity
1
CVSS
(AV:L/AC:H/Au:N/C:P/I:N/A:N)
Published
Jun 2, 2020
Added
Jun 3, 2020
Modified
Feb 10, 2026
Description
NSS has shown timing differences when performing DSA signatures, which was exploitable and could eventually leak private keys. This vulnerability affects Thunderbird < 68.9.0, Firefox < 77, and Firefox ESR < 68.9.
Solution
mozilla-firefox-esr-upgrade-68_9
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