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Warning: Actively Exploited Remote Code Execution in Zimbra Collaboration , Patch Immediately!

ID: a03e317c-1ceb-5ed8-b334-ff11d8cb6723

STIX ID: report--a03e317c-1ceb-5ed8-b334-ff11d8cb6723

Feed Name: Centre for Cybersecurity Belgium Advisories Feed

Threat Score
80/100

Date Published: 2026-08-19

Date Updated: 2026-08-20

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**CVE-2026-73570 — Zimbra Collaboration (pre-10.1.20) RCE**: A high-severity (CVSS 8.9) unauthenticated remote code execution vulnerability affecting Zimbra Collaboration when the optional zimbra-snmp package and SNMP notifications are enabled allows attackers to inject and execute shell commands as the zimbra user; active exploitation has been observed and vendors recommend urgent patching and increased monitoring.

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