A vulnerability, which was classified as critical, was found in Microsoft Windows 95/98/NT 3.51/NT 4.0/2000. Affected is an unknown function of the component IGMP Header Handler. The manipulation leads to improper input validation.
This vulnerability is traded as CVE-1999-0918. It is possible to launch the attack remotely. Furthermore, there is an exploit available.
It is recommended to apply a patch to fix this issue.
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CVE-1999-0918 | Microsoft Windows 95/98/NT 3.51/NT 4.0/2000 IGMP Header input validation (MS99-034 / EDB-19413)
A vulnerability, which was classified as critical, was found in Microsoft Windows 95/98/NT 3.51/NT 4.0/2000. Affected is an unknown function of the component IGMP Header Handler. The manipulation leads to improper input validation. This…
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CVE-1999-0918
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title: Detect Exploitation - CVE-1999-0918 | Microsoft Windows 95/98/NT 3.51/NT 4.0/2000 IGMP Header input validation (MS99-034 / EDB-19413)
id: f81e56e6-18ce-4be8-89fd-23235c635554
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-1999-0918 | Microsoft Wind" 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-1999-0918 | Microsoft Windows 95/98/.... Basierend auf 368k Vektor-Korrelationen werden sofortige Isolationsmaßnahmen für betroffene Endpunkte empfohlen.
🛡️ Angriffsfläche & Exposure
Netzwerk/Remote-Zugriff ohne Vorauthentifizierung möglich.
⚡ Empfohlene Sofortmaßnahmen
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- 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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