EUVD-2026-40994

FatFs prior to R0.16 that use GPT scanning with 'FFLBA64 = 1' contains an issue where an unbounded loop count derived from GPT header field GPTHPtNum, enabling extremely long or effectively infinite mount-time scans. This maps to CWE-835 Loop with Unreachable Exit Condition. Estimated CVSS v3.1...

PT-2026-54926

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...