{
  "id": "CVE-2019-9670",
  "url": "https://spydr.io/cve/CVE-2019-9670",
  "published": "2019-05-29T22:29:01.507Z",
  "modified": "2026-06-17T02:44:09.363Z",
  "score": 9.8,
  "severity": "critical",
  "cvss_version": "3.1",
  "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
  "score_source": "NVD",
  "epss": 0.99986,
  "epss_percentile": 0.99983,
  "exploited": true,
  "kev": {
    "added": "2022-01-10",
    "due": "2022-07-10",
    "action": "Apply updates per vendor instructions.",
    "ransomware": "Unknown",
    "name": "Synacor Zimbra Collaboration Suite (ZCS) Improper Restriction of XML External Entity Reference",
    "notes": "https://nvd.nist.gov/vuln/detail/CVE-2019-9670"
  },
  "ssvc_exploitation": "active",
  "vendors": [
    "synacor"
  ],
  "products": [
    "synacor zimbra collaboration suite"
  ],
  "cwes": [
    "CWE-611"
  ],
  "description": "mailboxd component in Synacor Zimbra Collaboration Suite 8.7.x before 8.7.11p10 has an XML External Entity injection (XXE) vulnerability, as demonstrated by Autodiscover/Autodiscover.xml.",
  "status": "Analyzed",
  "score_type": "Primary",
  "scores": {
    "cvss_v40": null,
    "cvss_v31": 9.8,
    "cvss_v30": null
  },
  "references": [
    {
      "url": "http://packetstormsecurity.com/files/152487/Zimbra-Collaboration-Autodiscover-Servlet-XXE-ProxyServlet-SSRF.html",
      "tags": [
        "Exploit",
        "Third Party Advisory",
        "VDB Entry"
      ]
    },
    {
      "url": "http://www.rapid7.com/db/modules/exploit/linux/http/zimbra_xxe_rce",
      "tags": [
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://bugzilla.zimbra.com/show_bug.cgi?id=109129",
      "tags": [
        "Broken Link",
        "Issue Tracking",
        "Patch",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://isc.sans.edu/forums/diary/CVE20199670+Zimbra+Collaboration+Suite+XXE+vulnerability/27570/",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories",
      "tags": [
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://www.exploit-db.com/exploits/46693/",
      "tags": [
        "Exploit",
        "Third Party Advisory",
        "VDB Entry"
      ]
    },
    {
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-9670",
      "tags": [
        "US Government Resource"
      ]
    }
  ],
  "nvd_url": "https://nvd.nist.gov/vuln/detail/CVE-2019-9670",
  "covered_in": [],
  "attribution": [
    {
      "source": "NVD",
      "url": "https://nvd.nist.gov",
      "notice": "This product uses data from the NVD API but is not endorsed or certified by the NVD."
    },
    {
      "source": "CISA KEV",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "notice": "Known exploited vulnerabilities from the CISA KEV catalog."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss",
      "notice": "Exploit prediction scores from FIRST EPSS."
    }
  ]
}