Exploited Zimbra Flaw Highlights Shrinking Window to Patch

Summary

CISA has issued an urgent directive, requiring federal agencies to patch a critical vulnerability in Zimbra Collaboration Suite within three days. Identified as CVE-2026-73570, the flaw enables attackers to achieve full takeover of a user's communications, posing a significant risk to sensitive data and operations. The rapid response highlights the shrinking window between vulnerability disclosure and exploitation, emphasizing the need for swift patching protocols.

Indicators of Compromise

• cve — CVE-2026-73570

Entities