vulnerability
MFSA2020-29 Thunderbird: Security Vulnerabilities fixed in Thunderbird 78 (CVE-2020-12422)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 8 | (AV:N/AC:H/Au:N/C:C/I:C/A:C) | Jul 9, 2020 | Jul 20, 2020 | Aug 12, 2025 |
Severity
8
CVSS
(AV:N/AC:H/Au:N/C:C/I:C/A:C)
Published
Jul 9, 2020
Added
Jul 20, 2020
Modified
Aug 12, 2025
Description
In non-standard configurations, a JPEG image created by JavaScript could have caused an internal variable to overflow, resulting in an out of bounds write, memory corruption, and a potentially exploitable crash. This vulnerability affects Firefox < 78.
Solution
mozilla-thunderbird-upgrade-78_0
NEW
Explore Exposure Command
Confidently identify and prioritize exposures from endpoint to cloud with full attack surface visibility and threat-aware risk context.