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As of 10/24/2026, Zimbra Collaboration Suite recorded 22 security vulnerabilities in the last 90 days, of which 8 are rated High or Critical. None of these vulnerabilities is actively exploited (KEV) according to CISA's catalog. CyStack recommends that organizations and individual users apply patches as soon as possible.
CyStack does not yet have sufficient official-source data to identify the latest version of Zimbra Collaboration Suite and determine which vulnerabilities affect that version.
CyStack VulnScan continuously discovers assets, validates vulnerabilities, and helps security teams prioritize remediation across the organization.
CVE-2026-115786Zimbra Collaboration Suite Shared-File Mailbox Quota Accounting Error Enables Quota ExhaustionCVE-2026-115785Zimbra Collaboration Suite Data Source Test SMTP Command Injection via Unsanitized Email AddressCVE-2026-93640Zimbra Collaboration Suite Local Privilege Escalation via Unrestricted zmunbound Sudo ConfigurationCVE-2026-50057Zimbra Collaboration Suite Local Privilege Escalation via Unrestricted Postfix Sudo PermissionsCVE-2026-50056Zimbra Collaboration Suite Local Privilege Escalation via zmmailboxdmgr JVM Argument Injection23 Results | Page 1 of 3