Critical Zimbra RCE flaw now actively exploited in attacks | HappeningNow.news
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Critical Zimbra RCE flaw now actively exploited in attacks

CERT Polska, the Polish Computer Emergency Response Team (CERT), warned that attackers have begun exploiting a critical vulnerability in Zimbra Collaboration Suite (ZCS).

Source AI Summary Published August 20, 2026 Brief Under 1 min brief
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CERT Polska, the Polish Computer Emergency Response Team, warned that attackers are actively exploiting a critical vulnerability in Zimbra Collaboration Suite (ZCS). ZCS is a widely used email and collaboration platform, serving hundreds of millions of users worldwide. The software is employed by thousands of businesses and hundreds of government agencies. The alert highlights the urgency for organizations using ZCS to apply the latest security patches.

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