CVE-2019-9621 - Synacor Zimbra Collaboration Suite (ZCS) Server-Side Request Forgery (SSRF) Vulnerability
Synacor Zimbra Collaboration Suite (ZCS) contains a server-side request forgery (SSRF) vulnerability via the ProxyServlet component.
- Severity
- critical
- Product
- Synacor Zimbra Collaboration Suite (ZCS)
- Published
- 2025-07-07
- EPSS
- 0.81
- CISA KEV
- Known exploited
- Ransomware
- Known campaign use
References and validation
- https://github.com/search?q=CVE-2019-9621&type=repositories
- https://nvd.nist.gov/vuln/detail/CVE-2019-9621
Entries are refreshed from CISA KEV and FIRST EPSS. Validate applicability before testing.