CVE-2026-6684
בינונית 4.6
תיאור (מקור, אנגלית)
FatFs prior to R0.16 that use GPT scanning with 'FF_LBA64 = 1' contains an issue where an unbounded loop count derived from GPT header field GPTH_PtNum, enabling extremely long or effectively infinite mount-time scans. This maps to CWE-835 (Loop with Unreachable Exit Condition). 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). 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-835
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-gpt-scan-loop-dos-cve-2026-6684/ Third Party Advisory