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criticalKEV

CVE-2026-73570

Zimbra Collaboration SNMP notification command injection -> remote code execution (CVSS 8.9, CISA KEV)

Severity
critical
Affected product
Zimbra Collaboration
Affected versions
Zimbra Collaboration all versions before the fix
Fixed in
Zimbra Collaboration 10.1.20
CISA KEV
Listed as a known exploited vulnerability
Added to NewScan
2026-08-22
Detected by
NewScan — free, self-hosted

How NewScan reports it

APPLIANCE FINGERPRINT

NewScan fingerprints the Zimbra Collaboration appliance and reports this CVE when the detected version falls inside the affected range below.

Added 2026-08-22 from CISA KEV, the only KEV entry in the day's window. Recorded `critical` rather than NVD's 8.9 under docs/severity-standard.md: it is remote code execution on a mail server, and the two Zimbra rows above it are the same class and are what mass-exploitation campaigns have historically chained. PRECONDITION, and it is a real one: the optional `zimbra-snmp` package must be installed AND SNMP notifications enabled, so this row is a `patch and check your SNMP config` advisory on a confirmed Zimbra rather than a claim the instance is exploitable - the appliance engine cannot see whether an optional package is present. NO `lt` even though the advisory names one (`before 10.1.20`), for the reason the whole appliance_cves pack works this way: the Zimbra appliances.json row fingerprints on /zimbra/, /public/login.jsp, the ZM_TEST cookie and a body marker, and none of those publish a build to an anonymous caller, so there is no number to compare. `fixed_in` is carried anyway because it is what the operator needs to read, and the day a version source for Zimbra is found this row gains its gate without being rewritten.

References

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