{"cve":{"cve_id":"CVE-2019-9670","is_kev":true,"kev_date_added":"2022-01-10","kev_vendor_project":"Synacor","kev_product":"Zimbra Collaboration Suite (ZCS)","kev_vulnerability_name":"Synacor Zimbra Collaboration Suite (ZCS) Improper Restriction of XML External Entity Reference","kev_short_description":"Synacor Zimbra Collaboration Suite (ZCS) contains an improper restriction of XML external entity (XXE) vulnerability in the mailboxd component.","kev_required_action":"Apply updates per vendor instructions.","kev_due_date":"2022-07-10","kev_known_ransomware":false,"kev_notes":"https://nvd.nist.gov/vuln/detail/CVE-2019-9670","kev_cwes":["CWE-611"],"epss_score":0.99986,"epss_percentile":0.99983,"epss_as_of":"2026-06-23","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.","published_at":"2019-05-29T21:04:28Z","last_modified_at":null,"cvss_v3_score":9.8,"cvss_v3_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cvss_v3_severity":"CRITICAL","cvss_v4_score":null,"cvss_v4_vector":null,"cvss_v4_severity":null,"ssvc_decision":null,"ssvc_exploitation":"active","ssvc_automatable":true,"ssvc_technical_impact":"total","cwes":["CWE-611"],"nvd_references":["https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories","https://bugzilla.zimbra.com/show_bug.cgi?id=109129","http://www.rapid7.com/db/modules/exploit/linux/http/zimbra_xxe_rce","http://packetstormsecurity.com/files/152487/Zimbra-Collaboration-Autodiscover-Servlet-XXE-ProxyServlet-SSRF.html","https://www.exploit-db.com/exploits/46693/","https://isc.sans.edu/forums/diary/CVE20199670+Zimbra+Collaboration+Suite+XXE+vulnerability/27570/"],"vuln_status":null,"trending_score":0.6099747999999999,"is_trending":false,"has_trended":false,"trended_number_one":false,"trending_peak_score":null,"trending_peak_rank":null,"started_trending_at":null,"trended_number_one_at":null,"summary_generated":null,"summary_generated_at":null,"summary_model":null,"created_at":"2026-06-24T00:09:31.350578Z","updated_at":"2026-06-29T02:30:27.550645Z"},"effective_severity":"CRITICAL","badges":["kev","poc","epss"],"impact_analysis":[],"cvss_v3_decoded":{"version":"3.1","metrics":[{"metric":"AV","name":"Attack Vector","value":"N","value_label":"Network"},{"metric":"AC","name":"Attack Complexity","value":"L","value_label":"Low"},{"metric":"PR","name":"Privileges Required","value":"N","value_label":"None"},{"metric":"UI","name":"User Interaction","value":"N","value_label":"None"},{"metric":"S","name":"Scope","value":"U","value_label":"Unchanged"},{"metric":"C","name":"Confidentiality","value":"H","value_label":"High"},{"metric":"I","name":"Integrity","value":"H","value_label":"High"},{"metric":"A","name":"Availability","value":"H","value_label":"High"}]},"cvss_v4_decoded":{"version":null,"metrics":[]},"affected":[],"exploit_refs":[{"source":"nuclei","kind":"nuclei","url":"https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2019/CVE-2019-9670.yaml","title":"Synacor Zimbra Collaboration <8.7.11p10 - XML External Entity Injection","author":"ree4pwn","disclosed_at":null}],"news":[],"references":[{"url":"https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories","source_type":"VENDOR_ADVISORY","tags":["advisory"]},{"url":"https://bugzilla.zimbra.com/show_bug.cgi?id=109129","source_type":"MISC","tags":[]},{"url":"http://www.rapid7.com/db/modules/exploit/linux/http/zimbra_xxe_rce","source_type":"MISC","tags":[]},{"url":"http://packetstormsecurity.com/files/152487/Zimbra-Collaboration-Autodiscover-Servlet-XXE-ProxyServlet-SSRF.html","source_type":"EXPLOIT","tags":["exploit"]},{"url":"https://www.exploit-db.com/exploits/46693/","source_type":"EXPLOIT","tags":["exploit"]},{"url":"https://isc.sans.edu/forums/diary/CVE20199670+Zimbra+Collaboration+Suite+XXE+vulnerability/27570/","source_type":"MISC","tags":[]}],"timeline":[{"type":"published","at":"2019-05-29T21:04:28Z","label":"CVE published","source":null},{"type":"cisa_reported","at":"2022-01-10T00:00:00Z","label":"Added to CISA KEV catalog","source":"kev"},{"type":"poc_available","at":"2026-06-24T00:29:48.638073Z","label":"Public PoC available","source":"nuclei"},{"type":"ssvc_changed","at":"2026-06-24T00:31:24.982914Z","label":"SSVC decision revised","source":"vulnrichment"},{"type":"ssvc_changed","at":"2026-06-24T00:31:24.982914Z","label":"SSVC decision revised","source":"vulnrichment"},{"type":"ssvc_changed","at":"2026-06-24T00:31:24.982914Z","label":"SSVC decision revised","source":"vulnrichment"},{"type":"cvss_changed","at":"2026-06-24T00:31:24.982914Z","label":"CVSS score revised","source":"vulnrichment"},{"type":"cvss_changed","at":"2026-06-24T00:31:24.982914Z","label":"CVSS score revised","source":"vulnrichment"},{"type":"cvss_changed","at":"2026-06-24T00:31:24.982914Z","label":"CVSS score revised","source":"vulnrichment"}]}