{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "versions": [
              {
                "introduced": "0"
              },
              {
                "last_affected": "2.75"
              }
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "e67bc27de22908b673c3367e658ec64bea7da718"
            }
          ],
          "repo": "https://github.com/jenkinsci/email-ext-plugin",
          "type": "GIT"
        }
      ]
    }
  ],
  "details": "Jenkins Email Extension Plugin 2.75 and earlier does not perform hostname validation when connecting to the configured SMTP server.",
  "id": "CVE-2020-2253",
  "modified": "2026-03-13T21:48:01.239399555Z",
  "published": "2020-09-16T14:15:13.097Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "http://www.openwall.com/lists/oss-security/2020/09/16/3"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.jenkins.io/security/advisory/2020-09-16/#SECURITY-1851"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}