Hackers breached over 270 Zimbra servers in ongoing attacks

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Hackers breached over 270 Zimbra servers in ongoing attacks

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Hackers breached over 270 Zimbra servers in ongoing attacks

Tue Aug 25 2026

Vulnerability

www.bleepingcomputer.com

Threat actors have already compromised over 270 Zimbra instances in remote code execution attacks targeting a high-severity Zimbra Collaboration Suite (ZCS) vulnerability. [...]