CVE-2019-9621
HighActively exploited (CISA KEV)
Description
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.
SeverityHigh
CVSS7.5
Exploit probability—
Product
Synacor Zimbra Collaboration Suite (ZCS)
PublishedApr 30, 2019
First seenApr 30, 2019
Added to KEVJul 7, 2025
Weakness typeCWE-918Server-side request forgery (SSRF)
How to fix
CISA required action
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
CISA due date: Jul 28, 2025Update
- synacor zimbra_collaboration_suite8.6.0, 8.7.11, 8.8.9 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| synacor zimbra_collaboration_suite | v < 8.6.0, 8.7.0 ≤ v < 8.7.11, 8.8.0 ≤ v < 8.8.9, 8.6.0, 8.7.11, 8.8.9, 8.8.10, 8.8.11 | 8.6.0, 8.7.11, 8.8.9 |
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