PT-2026-54929 · Chan · Fatfs
Hd Moore
+1
·
Published
2026-07-01
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Updated
2026-07-01
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CVE-2026-6687
CVSS v3.1
7.6
High
| Vector | AV:P/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H |
FatFs R0.16 and earlier contains a stack overflow bug in f getlabel() because exFAT label length (XDIR NumLabel) is trusted without enforcing spec maximums. This maps to CWE-121 (Stack-based Buffer Overflow). Estimated CVSS v3.1 vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H (7.6, High). The estimated CISA SSVC vectors are Exploitation: PoC, Technical Impact: Total.
Exploit
Fix
Stack Overflow
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Weakness Enumeration
Related Identifiers
Affected Products
Fatfs