A vulnerability categorized as very critical has been discovered in Microsoft Windows. This issue affects some unknown processing of the component NTFS. Such manipulation leads to stack-based buffer overflow.
This vulnerability is referenced as CVE-2026-49789. The attack can only be performed from a local environment. No exploit is available.
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CVE-2026-49789 | Microsoft Windows up to Server 2025 NTFS stack-based overflow
A vulnerability categorized as very critical has been discovered in Microsoft Windows. This issue affects some unknown processing of the component NTFS. Such manipulation leads to stack-based buffer overflow. This vulnerability is…
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CVE-2026-49789
CTI Threat Relationship Graph3 Knoten / 2 Relationen
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title: Detect Exploitation - CVE-2026-49789 | Microsoft Windows up to Server 2025 NTFS stack-based overflow
id: ece3a415-7479-4086-a367-e18efe3339f3
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-2026-49789 | Microsoft Win" ascii wide
condition:
any of them
}INFRASTRUCTURE BLAST RADIUS & EXPOSURE
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Kognitive Analyse für identifizierte Bedrohung: Erhöhte Bedrohungslage im Bereich CVE-2026-49789 | Microsoft Windows up to.... Basierend auf 368k Vektor-Korrelationen werden sofortige Isolationsmaßnahmen für betroffene Endpunkte empfohlen.
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