During the plaintext phase of the STARTTLS connection setup, protocol commands could have been injected and evaluated within the encrypted session. This vulnerability affects Thunderbird < 78.7.
https://www.mozilla.org/security/advisories/mfsa2021-05/
https://bugzilla.mozilla.org/show_bug.cgi?id=1622640
Source: Mitre, NVD
Published: 2022-12-22
Updated: 2023-01-04
Base Score: 10
Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C
Severity: Critical
Base Score: 8.8
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Severity: High