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7.6HIGH

AI helps find flaws in FatFs library used in millions of devices

📅 3 July 2026 at 16:24 UTC📰 Cyber InsiderView original source ↗
AI helps find flaws in FatFs library used in millions of devices

Researchers at runZero have disclosed seven security vulnerabilities in the widely used FatFs filesystem library, warning that the flaws could expose millions of embedded devices to attacks through malicious USB drives, SD cards, and, in some cases, firmware update mechanisms. The vulnerabilities, assigned CVE-2026-6682 through CVE-2026-6688, range in severity from medium to high and affect … The post AI helps find flaws in FatFs library used in millions of devices appeared first on CyberInsider.

🤖 AI BriefingAuto-generated threat analysis
🔍Threat Overview

Researchers at runZero discovered seven security vulnerabilities in the widely used FatFs filesystem library, which could expose millions of embedded devices to attacks through malicious USB drives and SD cards. The vulnerabilities range from medium to high severity.

⚙️Technical Details
CVEs
CVE-2026-6682CVE-2026-6688CVE-2026-6687
Affected Systems
IoT devicesindustrial productsconsumer products
Attack Vectors
PHYSICAL
💥Impact Assessment
Severity: Unknown
🛡️Recommended Actions
1Vendors should immediately update their products to the latest version of FatFs library
2Implement proper validation and verification mechanisms for firmware updates
3Use secure storage devices and ensure proper handling of removable media
📦Affected Products
Elm-Chan Fatfs
🔐NVD Verified DataVERIFIED
CVE-2026-6682CVSS 7.6HIGH
Attack Vector
PHYSICAL
Complexity
LOW
Vector String
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Weaknesses
CWE-190
Affected Products (CPE)
Elm-Chan Fatfs
CVE-2026-6688CVSS 7.6HIGH
Attack Vector
PHYSICAL
Complexity
LOW
Vector String
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Weaknesses
CWE-120
Affected Products (CPE)
Elm-Chan Fatfs
CVE-2026-6687CVSS 7.6HIGH
Attack Vector
PHYSICAL
Complexity
LOW
Vector String
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Weaknesses
CWE-121
Affected Products (CPE)
Elm-Chan Fatfs

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