vulnerability
MFSA2020-43 Firefox: Security Vulnerabilities fixed in Firefox ESR 78.3 (CVE-2020-15673)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:N/AC:M/Au:N/C:P/I:P/A:P) | Sep 22, 2020 | Sep 23, 2020 | Feb 10, 2026 |
Severity
7
CVSS
(AV:N/AC:M/Au:N/C:P/I:P/A:P)
Published
Sep 22, 2020
Added
Sep 23, 2020
Modified
Feb 10, 2026
Description
Mozilla developers reported memory safety bugs present in Firefox 80 and Firefox ESR 78.2. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 81, Thunderbird < 78.3, and Firefox ESR < 78.3.
Solution
mozilla-firefox-esr-upgrade-78_3
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