AI Summary

Hackers are exploiting a critical vulnerability in the Zimbra Collaboration Suite to steal email backups and authentication credentials from vulnerable organizations, according to a Microsoft warning. The flaw, identified as CVE‑2026‑73570, enables attackers to issue operating‑system commands remotely without any authentication. This remote‑code execution capability allows the theft of sensitive email data and login information. Microsoft’s advisory highlights the need for affected parties to address the vulnerability promptly.

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