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CVE-2026-6683 FatFs Divide-by-Zero in exFAT Sync

🗓️ 01 Jul 2026 13:41:11Reported by runZeroType 
cvelist
 cvelist
🔗 www.cve.org👁 36 Views

Older FatFs versions have a divide-by-zero in exFAT sync caused by crafted metadata.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-6683
1 Jul 202613:41
attackerkb
Circl
CVE-2026-6683
2 Jul 202600:38
circl
CVE
CVE-2026-6683
1 Jul 202613:41
cve
EUVD
EUVD-2026-40993
1 Jul 202613:41
euvd
GithubExploit
vulns-2026-fatfs-chance
29 Jun 202620:02
githubexploit
NVD
CVE-2026-6683
1 Jul 202615:17
nvd
Positive Technologies
PT-2026-54925
1 Jul 202600:00
ptsecurity
The Hacker News
Unpatched Flaws Disclosed in Filesystem Bundled Into Millions of Embedded Devices
3 Jul 202620:19
thn
Vulnrichment
CVE-2026-6683 FatFs Divide-by-Zero in exFAT Sync
1 Jul 202613:41
vulnrichment
[
  {
    "vendor": "ChaN",
    "product": "FatFs",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThanOrEqual": "R0.16",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unaffected"
  }
]

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01 Jul 2026 14:11Current
CVSS 3.14.6
EPSS0.00205
36