Arbitrary Command Injection Affecting kmailtransport package, versions *


Severity

Recommended
0.0
medium
0
10

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.27% (51st percentile)

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  • Snyk IDSNYK-UBUNTU1804-KMAILTRANSPORT-10873287
  • published22 Jul 2025
  • disclosed10 Aug 2021

Introduced: 10 Aug 2021

CVE-2021-38373  (opens in a new tab)
CWE-77  (opens in a new tab)
CWE-319  (opens in a new tab)

How to fix?

There is no fixed version for Ubuntu:18.04 kmailtransport.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kmailtransport package and not the kmailtransport package as distributed by Ubuntu. See How to fix? for Ubuntu:18.04 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1