EUVD-2026-36661

nanoMODBUS through v1.23.0 contains an off-by-one buffer overflow in the recvmsgheader function of the Modbus/TCP server that allows remote unauthenticated attackers to write one attacker-controlled byte past the end of the 260-byte receive buffer by sending a crafted MBAP frame whose Length fiel...

PT-2026-49133

Name of the Vulnerable Software and Affected Versions nanoMODBUS versions prior to 1.23.1 Description The Modbus/TCP server contains an off-by-one buffer overflow in the recv msg header function. Remote unauthenticated attackers can exploit this by sending a crafted MBAP frame with the Length fie...

CVE-2026-54410: Off-by-one Error

nanoMODBUS through v1.23.0 contains an off-by-one buffer overflow in the recvmsgheader function of the Modbus/TCP server that allows remote unauthenticated attackers to write one attacker-controlled byte past the end of the 260-byte receive buffer by sending a crafted MBAP frame whose Length fiel...

CVE-2026-35227: Missing Release of Resource after Effective Lifetime

An unauthenticated remote attacker may exhaust all available TCP connections in the CODESYS Modbus TCP Server stack if a race condition in connection handling is successfully exploited, preventing legitimate clients from establishing new connections...

CVE-2025-53476

A denial of service vulnerability exists in the ModbusTCP server functionality of OpenPLC v3 a931181e8b81e36fadf7b74d5cba99b73c3f6d58. A specially crafted series of network connections can lead to the server not processing subsequent Modbus requests. An attacker can open a series of TCP connectio...

EUVD-2025-32856

A denial of service vulnerability exists in the ModbusTCP server functionality of OpenPLC v3 a931181e8b81e36fadf7b74d5cba99b73c3f6d58. A specially crafted series of network connections can lead to the server not processing subsequent Modbus requests. An attacker can open a series of TCP connectio...

CVE-2025-53476

OpenPLC_v3 is affected by CVE-2025-53476 due to a DoS in the ModbusTCP server. A crafted sequence of TCP connections can exhaust the server’s file descriptors, causing the server to be unable to process subsequent Modbus requests. TALOS details the vulnerability in OpenPLC_v3, including the waitF...

EUVD-2023-23551

Malicious code in bioql PyPI...

CVE-2023-0027

Rockwell Automation Modbus TCP Server AOI prior to 2.04.00 is vulnerable to an unauthorized user sending a malformed message that could cause the controller to respond with a copy of the most recent response to the last valid request. If exploited, an unauthorized user could read the connected...

CVE-2023-1285

Signal Handler Race Condition vulnerability in Mitsubishi Electric India GC-ENET-COM whose first 2 digits of 11-digit serial number of unit are "16" allows a remote unauthenticated attacker to cause a denial-of-service DoS condition in Ethernet communication by sending a large number of specially...

Race condition

Signal Handler Race Condition vulnerability in Mitsubishi Electric India GC-ENET-COM whose first 2 digits of 11-digit serial number of unit are "16" allows a remote unauthenticated attacker to cause a denial-of-service DoS condition in Ethernet communication by sending a large number of specially...

CVE-2023-1285

CVE-2023-1285 describes a signal handler race condition in Mitsubishi Electric India GC-ENET-COM (GOC35 series) where units with serial numbers starting with 16 are vulnerable. An unauthenticated remote attacker can cause a DoS in Ethernet communications by sending a flood of specially crafted UD...

CVE-2023-1285

Signal Handler Race Condition vulnerability in Mitsubishi Electric India GC-ENET-COM whose first 2 digits of 11-digit serial number of unit are "16" allows a remote unauthenticated attacker to cause a denial-of-service DoS condition in Ethernet communication by sending a large number of specially...

CVE-2023-1285

Signal Handler Race Condition vulnerability in Mitsubishi Electric India GC-ENET-COM whose first 2 digits of 11-digit serial number of unit are "16" allows a remote unauthenticated attacker to cause a denial-of-service DoS condition in Ethernet communication by sending a large number of specially...

Rockwell Automation Modbus TCP AOI Server

1. EXECUTIVE SUMMARY CVSS v3 5.3 ATTENTION: Exploitable remotely/low attack complexity Vendor: Rockwell Automation Equipment: Modbus TCP Server Add-On Instruction AOI Vulnerability: Exposure of Sensitive Information to an Unauthorized Actor 2. RISK EVALUATION Successful exploitation of this...

PT-2023-9779 · Mitsubishi · Gc-Enet-Com

Name of the Vulnerable Software and Affected Versions: Mitsubishi Electric India GC-ENET-COM versions with the first 2 digits of the 11-digit serial number of the unit being "16" Description: The issue is related to a Signal Handler Race Condition that allows a remote unauthenticated attacker to...

CVE-2023-0027 Rockwell Automation Modbus TCP AOI Server Could Leak Sensitive Information

Rockwell Automation Modbus TCP Server AOI prior to 2.04.00 is vulnerable to an unauthorized user sending a malformed message that could cause the controller to respond with a copy of the most recent response to the last valid request. If exploited, an unauthorized user could read the connected...

CVE-2023-0027

Rockwell Automation Modbus TCP Server AOI prior to 2.04.00 is vulnerable to an unauthorized user sending a malformed message that can cause the controller to respond with the most recent response to the last valid request, enabling a read of the AOI information. Affected versions include pre-2.04...

CVE-2023-0027 Rockwell Automation Modbus TCP AOI Server Could Leak Sensitive Information

Rockwell Automation Modbus TCP Server AOI prior to 2.04.00 is vulnerable to an unauthorized user sending a malformed message that could cause the controller to respond with a copy of the most recent response to the last valid request. If exploited, an unauthorized user could read the connected...

PT-2023-2367 · Rockwell Automation · Modbus Tcp Server Aoi

Name of the Vulnerable Software and Affected Versions: Rockwell Automation Modbus TCP Server AOI versions prior to 2.04.00 Description: The issue is related to the lack of protection for service data. An unauthorized user can send a malformed message, causing the controller to respond with a copy...