nanoMODBUS security vulnerabilities

nanoMODBUS is a compact Modbus protocol C language library developed by Valerio De Benedetto. Versions of nanoMODBUS 1.22.0 and earlier contain security vulnerabilities. These vulnerabilities stem from a stack buffer overflow in the recvreadregistersres function in nanomodbus.c, which may allow a...

CVE-2026-29972: Stack-based Buffer Overflow

nanoMODBUS through v1.22.0 has a stack-based buffer overflow in recvreadregistersres in nanomodbus.c. When a client calls nmbsreadholdingregisters or nmbsreadinputregisters, the library writes register data from the server response to the caller-provided buffer based on the response's bytecount...

CVE-2026-29972

nanoMODBUS through v1.22.0 has a stack-based buffer overflow in recvreadregistersres in nanomodbus.c. When a client calls nmbsreadholdingregisters or nmbsreadinputregisters, the library writes register data from the server response to the caller-provided buffer based on the response's bytecount...