{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "versions": [
              {
                "introduced": "0"
              },
              {
                "last_affected": "3.14.5"
              }
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "c6bf714e6468213eed377527b431e9cd4cec1432"
            },
            {
              "fixed": "365abe807cab2d60dc9ec307292a06181f77a9c2"
            }
          ],
          "repo": "https://github.com/facebook/hhvm",
          "type": "GIT"
        }
      ]
    }
  ],
  "details": "Out-of-bounds write in the (1) mb_detect_encoding, (2) mb_send_mail, and (3) mb_detect_order functions in Facebook HHVM before 3.15.0 allows attackers to have unspecified impact via unknown vectors.",
  "id": "CVE-2016-6870",
  "modified": "2026-03-15T13:46:36.356081852Z",
  "published": "2017-02-17T17:59:00.983Z",
  "references": [
    {
      "type": "FIX",
      "url": "http://www.openwall.com/lists/oss-security/2016/08/11/1"
    },
    {
      "type": "FIX",
      "url": "http://www.openwall.com/lists/oss-security/2016/08/19/1"
    },
    {
      "type": "FIX",
      "url": "https://github.com/facebook/hhvm/commit/365abe807cab2d60dc9ec307292a06181f77a9c2"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}