{
  "cveId": "CVE-2016-0772",
  "url": "https://patchblox.com/security/cve/CVE-2016-0772",
  "summary": "CVE-2016-0772 is fixed in Python 3.5 on 1 platform by Python 3.5 3.5.2 (version 3.5.2), released June 26, 2016. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "Python 3.5: The smtplib library in CPython (aka Python) before 2.7.12, 3.x before 3.4.5, and 3.5.x before 3.5.2 does\u2026",
  "description": "The smtplib library in CPython (aka Python) before 2.7.12, 3.x before 3.4.5, and 3.5.x before 3.5.2 does not return an error when StartTLS fails, which might allow man-in-the-middle attackers to bypass the TLS protections by leveraging a network position between the client and the registry to block the StartTLS command, aka a \u0022StartTLS stripping attack.\u0022",
  "published": "2016-09-02T14:59:00Z",
  "severity": "",
  "cvss": 6.5,
  "epss": 0.15352,
  "epssPercentile": 0.96793,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://nvd.nist.gov/vuln/detail/CVE-2016-0772",
  "fixes": [
    {
      "platform": "windows-app",
      "product": "Python 3.5",
      "fixedVersion": "3.5.2",
      "fix": "Python 3.5 3.5.2",
      "url": "https://patchblox.com/security/fix/windows-app/python.python.3.5-3.5.2",
      "released": "2016-06-26T00:00:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-07T06:34:28Z"
}