vulnerability
MFSA2020-29 Thunderbird: Security Vulnerabilities fixed in Thunderbird 78 (CVE-2020-12423)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:L/AC:M/Au:N/C:C/I:C/A:C) | Jul 9, 2020 | Jul 20, 2020 | Aug 12, 2025 |
Severity
7
CVSS
(AV:L/AC:M/Au:N/C:C/I:C/A:C)
Published
Jul 9, 2020
Added
Jul 20, 2020
Modified
Aug 12, 2025
Description
When the Windows DLL "webauthn.dll" was missing from the Operating System, and a malicious one was placed in a folder in the user's %PATH%, Firefox may have loaded the DLL, leading to arbitrary code execution. *Note: This issue only affects the Windows operating system; other operating systems are unaffected.* This vulnerability affects Firefox < 78.
Solution
mozilla-thunderbird-upgrade-78_0
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