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Critical Zimbra RCE flaw now actively exploited in attacks

Published

20 August 2026

Topic

opportunities

Sectors

Cybersecurity

Source

Read at bleepingcomputer.com

Verified

Fusion42 · 20 August 2026 · Fusion42 review

A critical remote code execution (RCE) vulnerability in Zimbra, a popular email and collaboration platform, is being actively exploited by attackers, posing significant security risks to affected organisations.

This Wire brief sits within Fusion42's coverage of Cybersecurity.

◆ The Wire takeaway

You face heightened urgency to patch or mitigate this Zimbra flaw immediately or risk compromise. Your security tools and incident response must be ready for attacks exploiting this vulnerability.

Coverage

1 source · 20 Aug 2026

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Cybersecurityzimbrarcesecurity-flawactive-exploitationvulnerability