PT-2026-54926 · Fatfs · Fatfs
Hd Moore
+1
·
Published
2026-07-01
·
Updated
2026-07-06
·
CVE-2026-6684
CVSS v3.1
4.6
Medium
| Vector | AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
FatFs versions prior to R0.16
Description
An issue exists when using GPT scanning with
FF LBA64 = 1 where an unbounded loop count is derived from the GPT header field GPTH PtNum. This can lead to extremely long or effectively infinite scans during the mount-time process, resulting in a loop with an unreachable exit condition.Recommendations
Update FatFs to version R0.16 or later.
Exploit
Fix
Infinite Loop
Found an issue in the description? Have something to add? Feel free to write us 👾
Weakness Enumeration
Related Identifiers
Affected Products
Fatfs