CVE-2026-6683
בינונית 4.6
תיאור (מקור, אנגלית)
FatFs R0.16 and earlier contains a divide-by-zero in exFAT sync logic bug when crafted metadata causes n_fatent - 2 to be zero during write/sync operations. This maps to CWE-369 (Divide By Zero). Estimated CVSS v3.1 vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H (4.6, Medium). Network-delivered update media can make this remote in some pipelines. The estimated CISA SSVC vectors are Exploitation: PoC, Technical Impact: Partial.
מדדים
- CVSS 3.1
-
4.6 (MEDIUM)
מקור הציון: CNA
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - EPSS — סבירות ניצול
- 0% (אחוזון 000) נכון ל-15/8/2026
- CWE
- CWE-369
מוצרים מושפעים
elm-chan: fatfs
קישורים
- https://github.com/runZeroInc/vulns-2026-fatfs-chance Third Party AdvisoryExploit
- https://www.runzero.com/blog/fatfs-bugs/ Third Party AdvisoryExploit
- https://github.com/runZeroInc/vulns-2026-fatfs-chance Third Party AdvisoryExploit
- https://elm-chan.org/fsw/ff/ Product
- https://www.runzero.com/advisories/fatfs-exfat-divide-by-zero-cve-2026-6683 Third Party Advisory