Attackers Exploit Zimbra SNMP Flaw for Unauthenticated Remote Code Execution

A now-patched security flaw impacting Zimbra Collaboration (ZCS) has come under active exploitation in the wild, according to the Polish Computer Emergency Response Team (CERT Polska).

The vulnerability in question is CVE-2026-73570 (CVSS score: 8.9), which refers to a case of command injection that can lead to remote code execution.

“A remote code execution vulnerability exists in Zimbra