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implement the modbus TCP with TLS Support

Status: Open.

#872 In stephane/libmodbus;

· liuz888 opened on Sep 9, 2026

FC22 confirmation accepts mismatched address and masks

Status: Open.

#868 In stephane/libmodbus;

· MrAlaskan opened on Jul 24, 2026

Modbus TCP server ignores MBAP Length and leaves trailing bytes unread

Status: Open.

#867 In stephane/libmodbus;

· MrAlaskan opened on Jul 24, 2026

Can you integrate your Modbus slave RTU library and Modbus master library On STM32F767 board?

Status: Open.

#864 In stephane/libmodbus;

· leoembeddeder opened on Jul 18, 2026

[Windows][3.2.0] Valid SOCKET handles are incorrectly rejected by FD_SETSIZE checks

Status: Open.

#863 In stephane/libmodbus;

· sunmooncode opened on Jul 13, 2026

RTU Client Prematurely Aborts Request on Unexpected Slave Response

Status: Open.

#861 In stephane/libmodbus;

· MrAlaskan opened on Jun 22, 2026

Support Modbus RTU over TCP?

Status: Open.

#859 In stephane/libmodbus;

· capwevan opened on Jun 9, 2026

Segfault on musl: _modbus_tcp_pi_connect calls freeaddrinfo(NULL) on getaddrinfo failure (mirror of #831)

Status: Open.

#852 In stephane/libmodbus;

· NeriaIfrah opened on May 18, 2026

[TCP] Missing TCP_NODELAY and socket options on server-accepted connections in modbus_tcp_accept

Status: Open.

#849 In stephane/libmodbus;

· NeriaIfrah opened on May 17, 2026

libmodbus 3.1.12 Modbus/TCP MBAP Length framing flaw causes stock request-path desynchronization and connection-level DoS

Status: Open.

#848 In stephane/libmodbus;

· gff-cw opened on May 10, 2026

Can not build with Visual Studio due GCC-style warning flags

Status: Open.

#846 In stephane/libmodbus;

· uilianries opened on May 4, 2026

Exception function codes are constructed by adding +0x80, which may cause a wrap-around for illegal function codes.

Status: Open.

#845 In stephane/libmodbus;

· MrAlaskan opened on Apr 13, 2026