CVE-2026-6684

CVE-2026-6684 affects FatFs prior to R0.16 when GPT scanning is used with FF_LBA64 = 1. The issue stems from an unbounded loop count derived from the GPT header field GPTH_PtNum, leading to extremely long or effectively infinite mount-time scans (CWE-835: Loop with Unreachable Exit Condition). Af...

CVE-2026-6684: Loop with Unreachable Exit Condition

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...