CVE-2026-73570
CVSS Score
8.9
EPSS Score
1.0%
EPSS Percentile
61th
A remote code execution vulnerability exists in Zimbra Collaboration (ZCS) before 10.1.20 when the optional zimbra-snmp package is installed and SNMP notifications are enabled. Due to improper sanitization of untrusted input during SNMP notification processing, an unauthenticated attacker can send specially crafted SMTP requests that may result in execution of arbitrary operating system commands as the Zimbra user.
| CWE | CWE-78 |
| Vendor | zimbra |
| Product | collaboration |
| Published | Aug 13, 2026 |
| Last Updated | Aug 24, 2026 |
⚠️ Actively Exploited — Act Now
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:L Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
Low
Affected Versions
Zimbra / Collaboration
0 < 10.1.20
References
wiki.zimbra.com: https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories wiki.zimbra.com: https://wiki.zimbra.com/wiki/Security_Center moje.cert.pl: https://moje.cert.pl/komunikaty/2026/145/aktywnie-wykorzystywana-podatnosc-w-zimbra-collaboration-suite/ cisa.gov: https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-73570