CVE-2026-6686
בינונית 4.6
תיאור (מקור, אנגלית)
FatFs R0.16 and earlier contains an uninitialized cluster exposure when f_lseek() extends files beyond EOF without zero-filling newly allocated clusters. This maps to CWE-908 (Use of Uninitialized Resource). Estimated CVSS v3.1 vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N (4.6, Medium). 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:H/I:N/A:N - EPSS — סבירות ניצול
- 0% (אחוזון 000) נכון ל-15/8/2026
- CWE
- CWE-908
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-uninit-cluster-exposure-cve-2026-6686/ Third Party Advisory