Openplcproject vulnerabilities
We track 10 vulnerabilities in Openplcproject products across 3 products. 10 are rated high or critical, and none are known to be exploited. The most recent was published on July 18, 2026.
Latest Openplcproject vulnerabilities
- 8.8 High severity
OpenPLC_v3: Heap-based Buffer Overflow
OpenPLC_v3 contains a heap-based buffer overflow in the getData() function in webserver/core/modbus_master.cpp. getData() reads characters between two delimiters into a caller-supplied buffer with no size parameter and no bounds check. In parseConfig() the fun
- 8.8 High severity
OpenPLC_V3: Missing Authorization
OpenPLC_V3 REST API endpoint checks for JWT presence but never verifies the caller's role. Any authenticated user with role=user can delete any other user, including administrators, by specifying their user ID or they can create new accounts with role=admin, e
- 7.5 High severity
OpenPLC_V3: Plaintext Storage of a Password
OpenPLC_V3 is vulnerable to a Plaintext Storage of a Password vulnerability that could allow an attacker to retrieve credentials and access sensitive information.
- 9.8 Critical severity
OpenPLC_V3: Initialization of a Resource with an Insecure Default
OpenPLC_V3 is vulnerable to an Initialization of a Resource with an Insecure Default vulnerability which could allow an attacker to gain access to the system by bypassing authentication via an API.
- 7.5 High severity
OpenPLC: Concurrent Execution using Shared Resource with Improper Synchronization
OpenPLC 3 through 64f9c11 has server.cpp Memory Corruption because a thread may access handleConnections arguments after the parent stack frame becomes unavailable.
- 7.5 High severity
OpenPLC_v3: Incorrect Type Conversion or Cast
Multiple invalid pointer dereference vulnerabilities exist in the OpenPLC Runtime EtherNet/IP parser functionality of OpenPLC_v3 16bf8bac1a36d95b73e7b8722d0edb8b9c5bb56a. A specially crafted EtherNet/IP request can lead to denial of service. An attacker can se
- 7.5 High severity
OpenPLC_v3: Incorrect Type Conversion or Cast
Multiple invalid pointer dereference vulnerabilities exist in the OpenPLC Runtime EtherNet/IP parser functionality of OpenPLC_v3 16bf8bac1a36d95b73e7b8722d0edb8b9c5bb56a. A specially crafted EtherNet/IP request can lead to denial of service. An attacker can se
- 7.5 High severity
OpenPLC_v3: Out-of-bounds Read
An out-of-bounds read vulnerability exists in the OpenPLC Runtime EtherNet/IP PCCC parser functionality of OpenPLC_v3 b4702061dc14d1024856f71b4543298d77007b88. A specially crafted network request can lead to denial of service. An attacker can send a series of
- 7.5 High severity
OpenPLC_v3: Out-of-bounds Read
An out-of-bounds read vulnerability exists in the OpenPLC Runtime EtherNet/IP PCCC parser functionality of OpenPLC_v3 b4702061dc14d1024856f71b4543298d77007b88. A specially crafted network request can lead to denial of service. An attacker can send a series of
- 9.8 Critical severity
OpenPLC_v3: Out-of-bounds Write
A stack-based buffer overflow vulnerability exists in the OpenPLC Runtime EtherNet/IP parser functionality of OpenPLC _v3 b4702061dc14d1024856f71b4543298d77007b88. A specially crafted EtherNet/IP request can lead to remote code execution. An attacker can send