Description
In KDE KMail 19.12.3 (aka 5.13.3), the SMTP STARTTLS option is not honored (and cleartext messages are sent) unless "Server requires authentication" is checked.
References (2)
Core 2
Core References
Third Party Advisory x_refsource_misc
https://nostarttls.secvuln.info
Mailing List, Vendor Advisory x_refsource_misc
https://bugs.kde.org/show_bug.cgi?id=423423
Scores
CVSS v3
5.3
EPSS
0.0016
EPSS Percentile
36.6%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
Details
CWE
CWE-319
CWE-77
Status
published
Products (1)
kde/kmail
19.12.3
Published
Aug 10, 2021
Tracked Since
Feb 18, 2026