CVE-2021-38373

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CVSS 3.1

5.3 medium

EPSS

<1%p43

Published

Aug 10, 2021 (Aug 10, 2021)

Modified

Jun 17, 2026

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.

Vendors: kde
Products: kmail
Weakness: CWE-77, CWE-319
Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

NVD CVE.org GitHub PoCs EPSS (0.5%)

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