CVE-2019-9621
HIGH severity · CVSS 7.5 · Server-side request forgery (SSRF) · actively exploited (CISA KEV)
7.5CVSS HIGH exploited
Actively exploited in the wild (CISA Known Exploited Vulnerabilities).
Added to KEV 2025-07-07. US federal agencies must patch by 2025-07-28.
Summary
Zimbra Collaboration Suite before 8.6 patch 13, 8.7.x before 8.7.11 patch 10, and 8.8.x before 8.8.10 patch 7 or 8.8.x before 8.8.11 patch 3 allows SSRF via the ProxyServlet component.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
Confidentiality impactHigh
Integrity impactNone
Availability impactNone
Exploit probability (EPSS)81%
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Affected products we track (1)
Recommendation
This vulnerability is being actively exploited in the wild — patch affected products urgently. Open any affected product above for its exact safe version.
Additional information
- NVD record
- https://blog.zimbra.com/2019/03/9826/Advisory
- https://wiki.zimbra.com/wiki/Security_CenterAdvisory
- https://wiki.zimbra.com/wiki/Zimbra_Security_AdvisoriesAdvisory
- https://blog.tint0.com/2019/03/a-saga-of-code-executions-on-zimbra.htmlAdvisory
- https://bugzilla.zimbra.com/show_bug.cgi?id=109127
- http://packetstormsecurity.com/files/152487/Zimbra-Collaboration-Autodiscover-Servlet-XXE-ProxyServlet-SSRF.htmlAdvisory
- http://packetstormsecurity.com/files/153190/Zimbra-XML-Injection-Server-Side-Request-Forgery.htmlAdvisory
- http://www.rapid7.com/db/modules/exploit/linux/http/zimbra_xxe_rceAdvisory