A vulnerability was found in Open-Xchange Dovecot Pro and Dovecot CE and classified as problematic. The affected element is an unknown function of the component SMTP Command Interpretation. The manipulation results in injection. This vulnerability is identified as CVE-2026-33604. The attack can be executed remotely. There is not any exploit... Weiterlesen
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CVE-2026-33604 | Open-Xchange Dovecot Pro/Dovecot CE SMTP Command Interpretation injection (Nessus ID 341527 / WID-SEC-2026-3076)
A vulnerability was found in Open-Xchange Dovecot Pro and Dovecot CE and classified as problematic. The affected element is an unknown function of the component SMTP Command Interpretation. The manipulation results in injection. This…
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IoC Intelligence (1 Indikatoren)
CVE-2026-33604
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title: Detect Exploitation - CVE-2026-33604 | Open-Xchange Dovecot Pro/Dovecot CE SMTP Command Interpretation injection (Nessus ID 341527 / WID-SEC-2026-3076)
id: 7a6950d6-c717-4639-8f28-189b73d9ca89
status: experimental
description: Automatisch generierte SIEM-Erkennungsregel basierend auf CTI Intelligence
references:
- https://tsecurity.de/
author: iShareStuff CTI Automated Detection Engine
date: 2026-09-24
logsource:
category: network_connection
product: any
detection:
selection:
CommandLine|contains:
- 'exploit'
condition: selection
falsepositives:
- Legitime administrative Zugriffe oder Penetrationstests
level: high
tags:
- attack.initial_accessrule CTI_Threat_Indicator {
meta:
author = "iShareStuff CTI Automated Detection Engine"
date = "2026-09-24"
description = "YARA Signature for "
strings:
$str = "CVE-2026-33604 | Open-Xchange " ascii wide
condition:
any of them
}INFRASTRUCTURE BLAST RADIUS & EXPOSURE
Live-Vektor: LOCAL
LOCALIZED
Perimeter & Ingress
Geringes Risiko
Lateral Pivot & AD
GEFÄHRDET (80%)
Crown Jewels & DB
Geringes Risiko
Supply Chain Reach
Geringes Risiko
tsecurity.de Cognitive Threat RAG
Fokus-Vektor:
Kognitive Analyse für identifizierte Bedrohung: Erhöhte Bedrohungslage im Bereich CVE-2026-33604 | Open-Xchange Dovecot Pr.... Basierend auf 368k Vektor-Korrelationen werden sofortige Isolationsmaßnahmen für betroffene Endpunkte empfohlen.
🛡️ Angriffsfläche & Exposure
Netzwerk/Remote-Zugriff ohne Vorauthentifizierung möglich.
⚡ Empfohlene Sofortmaßnahmen
- 1. Perimeter-Inspektion: Relevante Portfreigaben und exponierte Endpunkte unverzüglich scannen.
- 2. Patch-Applikation: Hersteller-Hotfix einspielen oder betroffene Daemons in isolierte DMZ-Segmente überführen.
- 3. Telemetrie & EDR-Alerts: Prozessaufrufe und Child-Processes auf anomale Shell-Spawns überwachen.
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