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Zimbra Collaboration Suite
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- 1Critical Zimbra flaw CVE-2026-73570 actively exploited●🤖 CVE-2026-73570 (CVSS 8.9): unauthenticated OS command injection in Zimbra Collaboration Suite via its SNMP service, no
A critical vulnerability, CVE-2026-73570 with a CVSS score of 8.9, in Zimbra Collaboration Suite allowed unauthenticated attackers to run operating system commands through its SNMP service. According to Microsoft Security Research, attackers exploited the flaw to deploy web shells and steal mailbox credentials. A patch has been released, and security teams are urged to update affected servers promptly.