CVE-2026-73570

At a glance

Severity: HIGH 8.9
Exploitation: Known exploited (CISA KEV) · added 2026-08-21
Exploited per ENISA since 2026-08-18
EPSS: EPSS 71.66 % · percentile 99 (2026-10-27)
State: PUBLISHED
Published: 2026-08-13
Updated: 2026-08-24
Assigner: mitre
NVD status: Analyzed

Description

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.

Scores

Version	Score	Vector	Scored by
CVSS 3.1	HIGH 8.9	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:L	mitre
CVSS 3.1	HIGH 8.9	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:L	NVD · cve@mitre.org (Secondary)

Weaknesses (CWE)

CWE-78

European references

ENISA EUVD · EUVD-2026-58069
GCVE · GCVE-0-2026-73570

CERT-FR advisories

CERTFR-2026-AVI-1041 — Multiples vulnérabilités dans Synacor Zimbra Collaboration · cert.ssi.gouv.fr

Affected configurations (NVD CPE)

cpe:2.3:a:synacor:zimbra_collaboration_suite:*:*:*:*:*:*:*:* < 10.1.20

Affected products

Product	Versions
Zimbra · Collaboration	affected 0 < 10.1.20

References

Sources

Source	Licence
CVE List (CVEProject cvelistV5)	CVE Program Terms of Use
CISA Known Exploited Vulnerabilities	CC0 1.0
EPSS (FIRST.org)	FIRST — attribution requested
ENISA EUVD	ENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)	Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feeds	Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD