{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "versions": [
              {
                "introduced": "0"
              },
              {
                "last_affected": "19.12.3"
              }
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "75e8d32a308490cc26f246e98f8f15438b0e7b50"
            }
          ],
          "repo": "https://github.com/kde/kmail",
          "type": "GIT"
        }
      ]
    }
  ],
  "details": "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.",
  "id": "CVE-2021-38373",
  "modified": "2026-03-13T21:52:46.005461378Z",
  "published": "2021-08-10T15:15:08.390Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://bugs.kde.org/show_bug.cgi?id=423423"
    },
    {
      "type": "ADVISORY",
      "url": "https://nostarttls.secvuln.info"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}