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CVE-2026-6687 FatFs Stack Buffer Overflow via Uncapped exFAT Label Length

🗓️ 01 Jul 2026 13:57:54Reported by runZeroType 
cvelist
 cvelist
🔗 www.cve.org👁 3 Views

FatFs up to R0.16 and earlier have a stack overflow in f_getlabel from uncapped exFAT label length.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-6687
1 Jul 202613:57
attackerkb
CVE
CVE-2026-6687
1 Jul 202613:57
cve
EUVD
EUVD-2026-40999
1 Jul 202613:57
euvd
NVD
CVE-2026-6687
1 Jul 202615:17
nvd
Vulnrichment
CVE-2026-6687 FatFs Stack Buffer Overflow via Uncapped exFAT Label Length
1 Jul 202613:57
vulnrichment
[
  {
    "vendor": "ChaN",
    "product": "FatFs",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThanOrEqual": "R0.16",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unaffected"
  }
]

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01 Jul 2026 14:10Current
CVSS 3.17.6
3