Critical

Zimbra Patches Critical SNMP Command Injection and Four XSS Vulnerabilities

The Hacker News

July 21, 2026 at 1:18 PM

Overview

Zimbra has released an update to fix several serious security vulnerabilities, including a command injection flaw in its Simple Network Management Protocol (SNMP) component. The update, version 10.1.20, addresses a total of nine vulnerabilities, with the SNMP issue being particularly concerning as it could allow attackers to execute unauthorized commands when SNMP notifications are enabled. This could potentially expose sensitive data or disrupt services for organizations using Zimbra's platform. Companies that rely on Zimbra for email and collaboration tools need to update their systems promptly to mitigate these risks and ensure their environments remain secure.

Key Takeaways

Affected Systems: Zimbra 10.1.20 and earlier versions
Action Required: Update to Zimbra version 10.
Timeline: Newly disclosed

Original Article Summary

Zimbra has rolled out fixes to address multiple critical security issues, including a command injection flaw in the Simple Network Management Protocol (SNMP) monitoring component. As many as nine security vulnerabilities have been patched in Zimbra 10.1.20. Topping the list is a command injection vulnerability in the SNMP monitoring component when SNMP notifications are enabled. Also patched

Impact

Zimbra 10.1.20 and earlier versions

Exploitation Status

No active exploitation has been reported at this time. However, organizations should still apply patches promptly as proof-of-concept code may exist.

Timeline

Newly disclosed

Remediation

Update to Zimbra version 10.1.20

Additional Information

This threat intelligence is aggregated from trusted cybersecurity sources. For the most up-to-date information, technical details, and official vendor guidance, please refer to the original article linked below.

Related Topics: This incident relates to Vulnerability, Patch, Update, and 2 more.

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