Exploitation active confirmée

Ajoutée au catalogue CISA KEV le 21/08/2026, correctif exigé avant le 24/08/2026 pour les agences fédérales américaines.

Action requise : Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

Description officielle (NVD)

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.

Preuves de concept publiques (9)

Dépôts tiers non vérifiés, parfois piégés. Ne les exécutez jamais en production : uniquement dans un environnement de test isolé.

HORKimhab/CVE-2026-73570 · ★ 5 · 21/08/2026
CVE-2026-73570
gabrielunknown/CVE-2026-73570 · ★ 4 · 26/08/2026
Zimbra SNMP Notification OS Command Injection — Unauthenticated RCE via SMTP exploit (Poc)
jishino567/CVE-2026-73570 · ★ 2 · 25/08/2026
PoC for CVE-2026-73570 (Zimbra SMTP Command Injection)
dahnutz/zimbra-cve-2026-73570-ir · ★ 2 · 04/09/2026
Detection-first, evidence-preserving incident-response toolkit for Zimbra CVE-2026-73570. Includes read-only host checks, IOC feeds, triage, persistence, containment, and recovery guidance based on sa
0xBlackash/CVE-2026-73570 · ★ 2 · 30/09/2026
CVE-2026-73570
BiuTrap/CVE-2026-73570 · ★ 0 · 24/08/2026
CVE-2026-73570 PoC
INFOKOM-KI/Zimbra-CVE-2026-73570-Rules · ★ 0 · 28/08/2026
Wazuh Rules for Detection Zimbra (CVE-2026-73570).
juanpoch/CVE-2026-73570 · ★ 0 · 05/09/2026
Zimbra Collaboration Suite RCE — SMTP log poisoning → swatchdog → OS Command Injection (CVSS 8.9, CISA KEV)
hainhc/CVE-2026-73570 · ★ 0 · 10/09/2026