CVE-2026-71254

Katalog CVE

CVSS 9.8 · Critical EPSS 0,55%

Kerentanan Out-of-bounds Write. Skor CVSS 3.1 9.8 (Critical) menurut CNA.

Deskripsi (NVD)

nanoMODBUS through v1.23.0 contains an out-of-bounds write in the Modbus server-side handle_read_file_record function (FC 0x14, Read File Record) in nanomodbus.c. The function validates that the total request size does not exceed 245 bytes and that each sub-request's record_length is at most 124, but it never validates the CUMULATIVE response size across all sub-requests before processing them.

Rincian

Terbit di NVD

5 Agustus 2026

Terakhir diubah

26 Agustus 2026

Status NVD

Deferred

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-787: Out-of-bounds Write

EPSS (30 hari)

0,55% peluang dieksploitasi; lebih tinggi dari 44,6% CVE lain

Produk dan versi terdampak

NVD belum mencantumkan data produk (CPE) untuk CVE ini. Produk yang terdampak biasanya disebut di deskripsi dan di advisory vendor pada daftar referensi.

Referensi dan perbaikan

• https://github.com/debevv/nanoMODBUS
• https://github.com/debevv/nanoMODBUS/blob/master/nanomodbus.c