Our takeCISA added a Zimbra Collaboration flaw to its KEV catalog: it is confirmed exploited in the wild. Federal agencies must patch within 3 days; everyone else should treat it as urgent too.Cyber Resilience desk
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What this means for you — Security leader:U.S. federal agencies must patch the actively exploited Zimbra Collaboration Suite flaw within 72 hours per CISA directive. All other organizations running self-hosted Zimbra should review the advisory and apply the update immediately.
What this means for you — Lean IT orgs:If you run your own Zimbra email server, update it to the latest version right away — the vulnerability is already being exploited in the wild.
What this means for you — MSP:Check which clients run self-hosted Zimbra Collaboration Suite and ensure they apply the security update within days; treat this as an active exploitation risk.
What this means for you — Researcher:Review the technical details in the CISA KEV entry and Zimbra advisory to understand the exploitation method and detection opportunities.