Reference page — cumulative record through Sunday, October 4, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2019-9670

CVE-2019-9670CRITICAL

n/a n/a — Synacor Zimbra Collaboration Suite (ZCS)

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS    %ile   KEV
   N   L   N   N  U  H  H  H    9.8   .9999   100.0   YES

AFFECTED
  Product  Versions  Fixed
  n/a      n/a –     —

TIMELINE
  Mar 11  Reserved by mitre
  May 29  Published (CNA: mitre)
  Jan 10  Added to CISA KEV, remediation due 2022-07-10

CWE-611 · CNA: mitre · CVSS v3.1 · 7 references · KEV due July 10, 2022

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.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
March 11, 2019	Reserved	Reserved by mitre
May 29, 2019	Published	Published (CNA: mitre)
January 10, 2022	KEV ADDED	Added to CISA KEV, remediation due 2022-07-10

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
n/a	n/a	—	n/a	—

Weaknesses

CWE-611

References (7)

http://packetstormsecurity.com/files/152487/Zimbra-Collaboration-Autodiscover-Servlet-XXE-ProxyServlet-SSRF.html [x_refsource_MISC]
http://www.rapid7.com/db/modules/exploit/linux/http/zimbra_xxe_rce [x_refsource_MISC]
https://bugzilla.zimbra.com/show_bug.cgi?id=109129 [x_refsource_MISC]
https://isc.sans.edu/forums/diary/CVE20199670+Zimbra+Collaboration+Suite+XXE+vulnerability/27570/ [x_refsource_MISC]
https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories [x_refsource_MISC]
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-9670 [government-resource]
https://www.exploit-db.com/exploits/46693/ [exploit, x_refsource_EXPLOIT-DB]

Authoritative record: CVE-2019-9670 at cve.org

Weaknesses: CWE-611

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2019-9670 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Sunday, October 4, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.