mount_volume. Performing a manipulation of the argument n_fats results in integer overflow.This vulnerability is known as CVE-2026-6682. The attack may be carried out on the physical device. No exploit is available.
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CVE-2026-6682 | ChaN FatFs up to R0.16 mount_volume n_fats integer overflow (EUVD-2026-40992)
A vulnerability was found in ChaN FatFs up to R0.16. It has been classified as critical. This issue affects the function mount_volume. Performing a manipulation of the argument n_fats results in integer overflow. This vulnerability is…
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A vulnerability was found in ChaN FatFs up to R0.16. It has been classified as critical. This issue affects the function
This vulnerability is known as CVE-2026-6682. The attack may be carried out on the physical device. No exploit is available.
This vulnerability is known as CVE-2026-6682. The attack may be carried out on the physical device. No exploit is available.
IoC Intelligence (1 Indikatoren)
CVE-2026-6682
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title: Detect Exploitation - CVE-2026-6682 | ChaN FatFs up to R0.16 mount_volume n_fats integer overflow (EUVD-2026-40992)
id: 84b309c1-d7ff-45fc-b56c-418c1343ad43
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-2026-6682 | ChaN FatFs up " ascii wide
condition:
any of them
}INFRASTRUCTURE BLAST RADIUS & EXPOSURE
Live-Vektor: LOCAL
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Perimeter & Ingress
Geringes Risiko
Lateral Pivot & AD
GEFÄHRDET (80%)
Crown Jewels & DB
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Supply Chain Reach
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tsecurity.de Cognitive Threat RAG
Fokus-Vektor:
Kognitive Analyse für identifizierte Bedrohung: Erhöhte Bedrohungslage im Bereich CVE-2026-6682 | ChaN FatFs up to R0.16 m.... Basierend auf 368k Vektor-Korrelationen werden sofortige Isolationsmaßnahmen für betroffene Endpunkte empfohlen.
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Netzwerk/Remote-Zugriff ohne Vorauthentifizierung möglich.
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