Zimbra Collaboration Suite (ZCS) OS Command Injection Vulnerability

Zimbra Collaboration Suite (ZCS) contains an OS command injection vulnerability which could allow an unauthenticated attacker to send specially crafted SMTP requests that may result in execution of arbitrary operating system commands as the Zimbra user.

Published 26 Aug 2026Updated 26 Aug 202669 sources
CVSS 0.0 PoC CANDIDATE△ CISA KEV

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