CVE-2026-6684

Katalog CVE

CVSS 4.6 · Medium EPSS 0,31%

Kerentanan Loop with Unreachable Exit Condition ('Infinite Loop') pada elm-chan fatfs. Skor CVSS 3.1 4.6 (Medium) menurut CNA.

Deskripsi (NVD)

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.

Rincian

Terbit di NVD

1 Juli 2026

Terakhir diubah

2 Juli 2026

Status NVD

Analyzed

CVSS 3.1

4.6 (Medium), sumber CNA
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop')

EPSS (30 hari)

0,31% peluang dieksploitasi; lebih tinggi dari 21,6% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/runZeroInc/vulns-2026-fatfs-chance advisory pihak ketiga · exploit
• https://www.runzero.com/advisories/fatfs-gpt-scan-loop-dos-cve-2026-6684/ advisory pihak ketiga
• https://www.runzero.com/blog/fatfs-bugs/ advisory pihak ketiga · exploit
• https://elm-chan.org/fsw/ff/ product