TechAttackers exploit critical Zimbra flaw to steal emails

Microsoft warned that hackers are exploiting a critical vulnerability in Zimbra Collaboration Suite to seek email backups and authentication credentials from vulnerable organizations. The flaw allows unauthenticated remote operating-system command execution. Although Synacor issued a patch on July 20, Shadowserver later found 274 compromised instances.

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AArs Technica★★★☆☆2026-09-30 20:44Original