Wire · technology
High-Severity Vulnerability in Zimbra Collaboration Suite
◆ Sectors
Cybersecurity
◆ Source
◆ Verified
Fusion42 · 21 August 2026 · Fusion42 review
Zimbra Collaboration Suite has a critical command injection vulnerability (CVE-2026-73570) with a high CVSS score of 8.9, actively exploited in the wild, allowing attackers to gain full control of affected servers if SNMP notifications are enabled. Users are urgently advised to update to version 10.1.20 or later to mitigate the risk.
This Wire brief sits within Fusion42's coverage of Cybersecurity.
◆ ◆ The Wire takeaway
You must prioritise patching Zimbra servers immediately to avoid takeover and credential theft. Attackers no longer need authentication, so the window to act is closing fast.
◆ Coverage
1 source · 21 Aug 2026
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◆ Topics
Cybersecurityzimbrasecurityvulnerabilityrcepatchexploitation