Threats Tagged 'cve-2026-29972'
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Threats Tagged 'cve-2026-29972'
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0 nanoMODBUS through v1.22.0 has a stack-based buffer overflow in recv_read_registers_res() in nanomodbus.c. When a client calls nmbs_read_holding_registers() or nmbs_read_input_registers(), the library writes register data from the server response to the caller-provided buffer based on the response's byte_count field before validating that byte_count matches the requested quantity. A malicious Modbus TCP server can send a response with byte_count=250 (125 registers) regardless of the requested quantity, causing up to 248 bytes of attacker-controlled data to overflow the buffer, potentially allowing remote code execution. Join the discussion | CVE Database V5 | 05/08/2026, 00:00:00 UTC Added: 05/08/2026, 15:51:26 UTC |
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