Zimbra Multiple Vulnerabilities
Multiple vulnerabilities were identified in Zimbra. A remote attacker could exploit some of these vulnerabilities to trigger denial of service condition, remote code execution and cross-site scripting on the targeted system.
Note:
CVE-2019-9621 is being exploited in the wild. Synacor Zimbra Collaboration Suite (ZCS) contains a server-side request forgery (SSRF) vulnerability via the ProxyServlet component. Successful exploitation of this vulnerability could allow a remote attacker to execute arbitrary code on the affected system. Hence, the risk level is rated as Extremely High Risk.
RISK: Extremely High Risk
TYPE: Servers – Internet App Servers
Impact
- Remote Code Execution
- Denial of Service
- Cross-Site Scripting
System / Technologies affected
- Zimbra Collaboration Suite up to and excluding 8.6.0
- Zimbra Collaboration Suite from including 8.7.0 up to and excluding 8.7.11
- Zimbra Collaboration Suite from including 8.8.0 up to and excluding 8.8.10
Solutions
Before installation of the software, please visit the vendor web-site for more details.
Apply fixes issued by the vendor:
- https://wiki.zimbra.com/wiki/Zimbra_Releases/8.7.11/P11
- https://wiki.zimbra.com/wiki/Zimbra_Releases/8.8.9/P10
- https://wiki.zimbra.com/wiki/Zimbra_Releases/8.8.10/P8
- https://wiki.zimbra.com/wiki/Zimbra_Releases/8.8.11/P4
- https://wiki.zimbra.com/wiki/Zimbra_Releases/8.8.9/P10
- https://wiki.zimbra.com/wiki/Zimbra_Releases/8.8.12/P1
- https://wiki.zimbra.com/wiki/Zimbra_Releases/8.8.12
Vulnerability Identifier
Source
Related Link
- https://wiki.zimbra.com/wiki/Zimbra_Releases/8.7.11/P11
- https://wiki.zimbra.com/wiki/Zimbra_Releases/8.8.9/P10
- https://wiki.zimbra.com/wiki/Zimbra_Releases/8.8.10/P8
- https://wiki.zimbra.com/wiki/Zimbra_Releases/8.8.11/P4
- https://wiki.zimbra.com/wiki/Zimbra_Releases/8.8.9/P10
- https://wiki.zimbra.com/wiki/Zimbra_Releases/8.8.12/P1
- https://wiki.zimbra.com/wiki/Zimbra_Releases/8.8.12
- https://www.cisa.gov/news-events/alerts/2025/07/07/cisa-adds-four-known-exploited-vulnerabilities-catalog
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