VULNERABILITY INTELLIGENCE

CVE-2021-38373

CVSS score5.3 MEDIUM

EPSS probability0.53%

CISA KEVNot currently listed

Published2021-08-10

Last modified2026-06-17

CVSS vectorCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

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.

Weakness classification

CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection')
CWE-319: Cleartext Transmission of Sensitive Information

Primary references

cve@mitre.org — Mailing List, Vendor Advisory
cve@mitre.org — Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Mailing List, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory