CVE-2019-9670

synacor zimbra collaboration suite

Published 29 May 2019 · updated 17 Jun 2026 · Analyzed

9.8 Critical · CVSS 3.1, NVD

Exploited in the wild

CISA added this to its Known Exploited Vulnerabilities catalog on 10 Jan 2022, with a remediation deadline of 10 Jul 2022 for US federal agencies.

Required action: Apply updates per vendor instructions.

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.

References

packetstormsecurity.com/files/152487/Zimbra-Collaboration-Autodiscover-Servlet-XXE-ProxyServlet-SSRF.html · Exploit, Third Party Advisory, VDB Entry
www.rapid7.com/db/modules/exploit/linux/http/zimbra_xxe_rce · Third Party Advisory
bugzilla.zimbra.com/show_bug.cgi?id=109129 · Broken Link, Issue Tracking, Patch
isc.sans.edu/forums/diary/CVE20199670+Zimbra+Collaboration+Suite+XXE+vulnerability/27570/ · Exploit, Third Party Advisory
wiki.zimbra.com/wiki/Zimbra_Security_Advisories · Vendor Advisory
www.exploit-db.com/exploits/46693/ · Exploit, Third Party Advisory, VDB Entry
www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-9670 · US Government Resource