CVE-2021-38373
5.3 MEDIUMIn KDE KMail 19.12.3 (aka 5.13.3), the SMTP STARTTLS option is not honored (and cleartext messages are sent) unless "Server requires auth...
Published: 2021-08-10 · Last updated: 2026-06-17
Severity and scoring
- CVSS
- 5.3 MEDIUM
- Vector
- CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
- CWE
- CWE-319, CWE-77
Affected products
| Vendor | Product |
|---|---|
| kde | kmail |
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.
Source: NVD
References
- [NVD]https://nvd.nist.gov/vuln/detail/CVE-2021-38373
- [Vendor advisory]https://bugs.kde.org/show_bug.cgi?id=423423
- [Other]https://nostarttls.secvuln.info
- [Vendor advisory]https://bugs.kde.org/show_bug.cgi?id=423423
- [Other]https://nostarttls.secvuln.info
Related CVEs
Same vendor
- CVE-2021-38372 — In KDE Trojita 0.7, man-in-the-middle attackers can create new folders because untagged responses from an IMAP server are accepted before... (3.7 LOW)
Same CWE
- CVE-2024-24909 — Dell OpenManage Integration with Microsoft Windows Admin Center contains a Remote Code Execution vulnerability in the gateway plugin (8.8 HIGH)
- CVE-2025-56814 — A code injection vulnerability in the wxExecute() function of OpenCPN v5.12.0 allows attackers to execute arbitrary code via embedding sh... (7.8 HIGH)
- CVE-2026-12223 — A vulnerability was identified in Yealink SIP-T46U 108.86.0.118 (5.5 MEDIUM)
- CVE-2026-12219 — A flaw has been found in Yealink SIP-T46U 108.86.0.118 (6.3 MEDIUM)
- CVE-2026-12197 — A security flaw has been discovered in Ruijie EG105G-P 2.340 (7.2 HIGH)