CVE-2020-12398

If Thunderbird is configured to use STARTTLS for an IMAP server, and the server sends a PREAUTH response, then Thunderbird will continue with an unencrypted…

published July 9, 2020

CVSS
—
EPSS
1%
Percentile
61.8
In the wild
Unconfirmed
What it is

If Thunderbird is configured to use STARTTLS for an IMAP server, and the server sends a PREAUTH response, then Thunderbird will continue with an unencrypted connection, causing email data to be sent without protection. This vulnerability affects Thunderbird < 68.9.0.

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.00976 · 61.8th percentile
Published
2020-07-09T14:45Z
EPSS history
Timeline
  • 09 JUL 14:45Z
    If Thunderbird is configured to use STARTTLS for an IMAP server, and the server sends a PREAUTH response, then Thunderbird will continue with an unencrypted…
    cvelistv5