CVEvulnerability

CVE-2026-71255

8.6 HIGH Published 2026-08-05 Modified 2026-10-24 Official page ↗

Status: Deferred
Published: 2026-08-05
Last modified: 2026-10-24
Assigner: 309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c
CVSS 3.1 (309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c): 8.6 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
Weaknesses: CWE-787

Description

nanoMODBUS through v1.23.0 contains an out-of-bounds write in the Modbus client-side recv_read_device_identification_res function (FC 0x2B/MEI 0x0E, Read Device Identification) in nanomodbus.c. The server-supplied object_length field (0-246) is validated only against the remaining PDU size (res_size_left) and is never validated against the caller-supplied buffers_length parameter.

Weakness · CWE (1)

CWE-787 Out-of-bounds Write weakness

References

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

CVE-2026-71255

Description

Related

Weakness · CWE (1)

References