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highExchangesecurity advisoryms_security_blog · Sep 30, 2026
Unauthenticated command injection on internet-facing mail servers: tracking CVE-2026-73570
Microsoft Threat Intelligence provides guidance on CVE-2026-73570, an unauthenticated command injection vulnerability in Zimbra mail servers, highlighting attack paths and mitigation strategies.
“Microsoft Threat Intelligence examines CVE-2026-73570 exploitation in Zimbra, including observed attack paths, detection opportunities, and mitigation guidance. The post Unauthenticated command injection on internet-facing mail servers: tracking CVE-2026-73570 appeared first on Microsoft Security Bl”
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threat_protectionvulnerability_management
Audience
adminsecurity_engineer
Environment
cloudon_premises
Classification confidence: 95%
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