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    16 vulnerabilities by openplcproject

    CVE-2026-11826 (GCVE-0-2026-11826)

    Vulnerability from nvd – Published: 2026-07-18 13:35 – Updated: 2026-07-28 01:48
    VLAI
    Title
    OpenPLC_v3 Heap-Based Buffer Overflow in Modbus Master getData()
    Summary
    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 function is invoked with the 100-byte heap-allocated MB_device.dev_name field. An authenticated attacker with access to the OpenPLC web interface can send a crafted HTTP POST to the /modbus endpoint with an oversized device_name value; the value is persisted to mbconfig.cfg and parsed on load, overflowing dev_name and overwriting adjacent struct fields (protocol at offset 108, dev_address at offset 109, ip_port at offset 210). A 200-byte payload writes 100 bytes past the allocation. The result is heap corruption leading to runtime crash and denial of service of the PLC process control loop, with attacker-controlled overwrite of adjacent configuration fields. The upstream repository was archived on 2026-04-04 and no fix is expected; the vendor has confirmed the issue does not affect OpenPLC Runtime v4.
    SSVC
    Exploitation: none Automatable: no Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-07-20 17:02 UTC
    CWE
    • CWE-122 - Heap-based Buffer Overflow
    Impacted products
    Vendor Product Version
    openplcproject OpenPLC_v3 Affected: 0 , ≤ b470206 (git)
        cpe:2.3:h:openplcproject:openplc_v3:*:*:*:*:*:*:*:*
    Create a notification for this product.
    Date Public
    2026-07-17 00:00
    Show details on NVD website

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    CVE-2025-46613 (GCVE-0-2025-46613)

    Vulnerability from nvd – Published: 2025-04-25 00:00 – Updated: 2025-04-25 14:27
    VLAI
    Summary
    OpenPLC 3 through 64f9c11 has server.cpp Memory Corruption because a thread may access handleConnections arguments after the parent stack frame becomes unavailable.
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2025-04-25 14:26 UTC
    CWE
    • CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
    Impacted products
    Vendor Product Version
    openplcproject OpenPLC Affected: 0 , ≤ 64f9c11263229b019091e3c5a1896c184e0661a6 (git)
        cpe:2.3:a:openplcproject:openplc:*:*:*:*:*:*:*:*
    Create a notification for this product.
    Show details on NVD website

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    CVE-2024-39590 (GCVE-0-2024-39590)

    Vulnerability from nvd – Published: 2024-09-18 14:35 – Updated: 2025-11-04 16:12
    VLAI
    Summary
    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 send a series of EtherNet/IP requests to trigger these vulnerabilities.This instance of the vulnerability occurs within the `Protected_Logical_Write_Reply` function
    SSVC
    Exploitation: poc Automatable: yes Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2024-09-18 17:19 UTC
    CWE
    • CWE-704 - Incorrect Type Conversion or Cast
    Impacted products
    Vendor Product Version
    OpenPLC OpenPLC_v3 Affected: 16bf8bac1a36d95b73e7b8722d0edb8b9c5bb56a
    Create a notification for this product.
    openplcproject openplc_v3 Affected: 16bf8bac1a36d95b73e7b8722d0edb8b9c5bb56a
        cpe:2.3:h:openplcproject:openplc_v3:-:*:*:*:*:*:*:*
    Create a notification for this product.
    Show details on NVD website

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    CVE-2024-39589 (GCVE-0-2024-39589)

    Vulnerability from nvd – Published: 2024-09-18 14:35 – Updated: 2025-11-04 16:12
    VLAI
    Summary
    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 send a series of EtherNet/IP requests to trigger these vulnerabilities.This instance of the vulnerability occurs within the `Protected_Logical_Read_Reply` function
    SSVC
    Exploitation: poc Automatable: yes Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2024-09-18 17:27 UTC
    CWE
    • CWE-704 - Incorrect Type Conversion or Cast
    Impacted products
    Vendor Product Version
    OpenPLC OpenPLC_v3 Affected: 16bf8bac1a36d95b73e7b8722d0edb8b9c5bb56a
    Create a notification for this product.
    openplcproject openplc_v3 Affected: 16bf8bac1a36d95b73e7b8722d0edb8b9c5bb56a
        cpe:2.3:h:openplcproject:openplc_v3:-:*:*:*:*:*:*:*
    Create a notification for this product.
    Show details on NVD website

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    CVE-2024-36981 (GCVE-0-2024-36981)

    Vulnerability from nvd – Published: 2024-09-18 14:35 – Updated: 2025-11-04 16:12
    VLAI
    Summary
    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 EtherNet/IP requests to trigger this vulnerability.This is the final instance of the incorrect comparison.
    SSVC
    Exploitation: poc Automatable: yes Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2024-09-18 18:14 UTC
    CWE
    Impacted products
    Vendor Product Version
    OpenPLC OpenPLC_v3 Affected: b4702061dc14d1024856f71b4543298d77007b88
    Create a notification for this product.
    openplcproject openplc_v3 Affected: b4702061dc14d1024856f71b4543298d77007b88
        cpe:2.3:h:openplcproject:openplc_v3:-:*:*:*:*:*:*:*
    Create a notification for this product.
    Show details on NVD website

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    CVE-2024-36980 (GCVE-0-2024-36980)

    Vulnerability from nvd – Published: 2024-09-18 14:35 – Updated: 2025-11-04 16:12
    VLAI
    Summary
    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 EtherNet/IP requests to trigger this vulnerability.This is the first instance of the incorrect comparison.
    SSVC
    Exploitation: poc Automatable: yes Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2024-09-18 18:20 UTC
    CWE
    Impacted products
    Vendor Product Version
    OpenPLC OpenPLC_v3 Affected: b4702061dc14d1024856f71b4543298d77007b88
    Create a notification for this product.
    openplcproject openplc_v3 Affected: b4702061dc14d1024856f71b4543298d77007b88
        cpe:2.3:h:openplcproject:openplc_v3:-:*:*:*:*:*:*:*
    Create a notification for this product.
    Show details on NVD website

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    CVE-2024-34026 (GCVE-0-2024-34026)

    Vulnerability from nvd – Published: 2024-09-18 14:35 – Updated: 2024-09-18 18:23
    VLAI
    Summary
    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 a series of EtherNet/IP requests to trigger this vulnerability.
    SSVC
    Exploitation: poc Automatable: no Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2024-09-18 18:22 UTC
    CWE
    • CWE-121 - Stack-based Buffer Overflow
    Impacted products
    Vendor Product Version
    OpenPLC OpenPLC_v3 Affected: b4702061dc14d1024856f71b4543298d77007b88
    Create a notification for this product.
    openplcproject openplc_v3 Affected: b4702061dc14d1024856f71b4543298d77007b88
        cpe:2.3:h:openplcproject:openplc_v3:-:*:*:*:*:*:*:*
    Create a notification for this product.
    Show details on NVD website

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    CVE-2021-3351 (GCVE-0-2021-3351)

    Vulnerability from nvd – Published: 2021-08-02 05:22 – Updated: 2024-08-03 16:53
    VLAI
    Summary
    OpenPLC runtime V3 through 2016-03-14 allows stored XSS via the Device Name to the web server's Add New Device page.
    Severity
    No CVSS data available.
    CWE
    • n/a
    References
    Show details on NVD website

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    CVE-2026-11826 (GCVE-0-2026-11826)

    Vulnerability from cvelistv5 – Published: 2026-07-18 13:35 – Updated: 2026-07-28 01:48
    VLAI
    Title
    OpenPLC_v3 Heap-Based Buffer Overflow in Modbus Master getData()
    Summary
    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 function is invoked with the 100-byte heap-allocated MB_device.dev_name field. An authenticated attacker with access to the OpenPLC web interface can send a crafted HTTP POST to the /modbus endpoint with an oversized device_name value; the value is persisted to mbconfig.cfg and parsed on load, overflowing dev_name and overwriting adjacent struct fields (protocol at offset 108, dev_address at offset 109, ip_port at offset 210). A 200-byte payload writes 100 bytes past the allocation. The result is heap corruption leading to runtime crash and denial of service of the PLC process control loop, with attacker-controlled overwrite of adjacent configuration fields. The upstream repository was archived on 2026-04-04 and no fix is expected; the vendor has confirmed the issue does not affect OpenPLC Runtime v4.
    SSVC
    Exploitation: none Automatable: no Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-07-20 17:02 UTC
    CWE
    • CWE-122 - Heap-based Buffer Overflow
    Impacted products
    Vendor Product Version
    openplcproject OpenPLC_v3 Affected: 0 , ≤ b470206 (git)
        cpe:2.3:h:openplcproject:openplc_v3:*:*:*:*:*:*:*:*
    Create a notification for this product.
    Date Public
    2026-07-17 00:00
    Show details on NVD website

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    CVE-2025-46613 (GCVE-0-2025-46613)

    Vulnerability from cvelistv5 – Published: 2025-04-25 00:00 – Updated: 2025-04-25 14:27
    VLAI
    Summary
    OpenPLC 3 through 64f9c11 has server.cpp Memory Corruption because a thread may access handleConnections arguments after the parent stack frame becomes unavailable.
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2025-04-25 14:26 UTC
    CWE
    • CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
    Impacted products
    Vendor Product Version
    openplcproject OpenPLC Affected: 0 , ≤ 64f9c11263229b019091e3c5a1896c184e0661a6 (git)
        cpe:2.3:a:openplcproject:openplc:*:*:*:*:*:*:*:*
    Create a notification for this product.
    Show details on NVD website

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    CVE-2024-36981 (GCVE-0-2024-36981)

    Vulnerability from cvelistv5 – Published: 2024-09-18 14:35 – Updated: 2025-11-04 16:12
    VLAI
    Summary
    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 EtherNet/IP requests to trigger this vulnerability.This is the final instance of the incorrect comparison.
    SSVC
    Exploitation: poc Automatable: yes Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2024-09-18 18:14 UTC
    CWE
    Impacted products
    Vendor Product Version
    OpenPLC OpenPLC_v3 Affected: b4702061dc14d1024856f71b4543298d77007b88
    Create a notification for this product.
    openplcproject openplc_v3 Affected: b4702061dc14d1024856f71b4543298d77007b88
        cpe:2.3:h:openplcproject:openplc_v3:-:*:*:*:*:*:*:*
    Create a notification for this product.
    Show details on NVD website

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    CVE-2024-36980 (GCVE-0-2024-36980)

    Vulnerability from cvelistv5 – Published: 2024-09-18 14:35 – Updated: 2025-11-04 16:12
    VLAI
    Summary
    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 EtherNet/IP requests to trigger this vulnerability.This is the first instance of the incorrect comparison.
    SSVC
    Exploitation: poc Automatable: yes Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2024-09-18 18:20 UTC
    CWE
    Impacted products
    Vendor Product Version
    OpenPLC OpenPLC_v3 Affected: b4702061dc14d1024856f71b4543298d77007b88
    Create a notification for this product.
    openplcproject openplc_v3 Affected: b4702061dc14d1024856f71b4543298d77007b88
        cpe:2.3:h:openplcproject:openplc_v3:-:*:*:*:*:*:*:*
    Create a notification for this product.
    Show details on NVD website

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    CVE-2024-34026 (GCVE-0-2024-34026)

    Vulnerability from cvelistv5 – Published: 2024-09-18 14:35 – Updated: 2024-09-18 18:23
    VLAI
    Summary
    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 a series of EtherNet/IP requests to trigger this vulnerability.
    SSVC
    Exploitation: poc Automatable: no Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2024-09-18 18:22 UTC
    CWE
    • CWE-121 - Stack-based Buffer Overflow
    Impacted products
    Vendor Product Version
    OpenPLC OpenPLC_v3 Affected: b4702061dc14d1024856f71b4543298d77007b88
    Create a notification for this product.
    openplcproject openplc_v3 Affected: b4702061dc14d1024856f71b4543298d77007b88
        cpe:2.3:h:openplcproject:openplc_v3:-:*:*:*:*:*:*:*
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    CVE-2024-39590 (GCVE-0-2024-39590)

    Vulnerability from cvelistv5 – Published: 2024-09-18 14:35 – Updated: 2025-11-04 16:12
    VLAI
    Summary
    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 send a series of EtherNet/IP requests to trigger these vulnerabilities.This instance of the vulnerability occurs within the `Protected_Logical_Write_Reply` function
    SSVC
    Exploitation: poc Automatable: yes Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2024-09-18 17:19 UTC
    CWE
    • CWE-704 - Incorrect Type Conversion or Cast
    Impacted products
    Vendor Product Version
    OpenPLC OpenPLC_v3 Affected: 16bf8bac1a36d95b73e7b8722d0edb8b9c5bb56a
    Create a notification for this product.
    openplcproject openplc_v3 Affected: 16bf8bac1a36d95b73e7b8722d0edb8b9c5bb56a
        cpe:2.3:h:openplcproject:openplc_v3:-:*:*:*:*:*:*:*
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    Show details on NVD website

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    CVE-2024-39589 (GCVE-0-2024-39589)

    Vulnerability from cvelistv5 – Published: 2024-09-18 14:35 – Updated: 2025-11-04 16:12
    VLAI
    Summary
    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 send a series of EtherNet/IP requests to trigger these vulnerabilities.This instance of the vulnerability occurs within the `Protected_Logical_Read_Reply` function
    SSVC
    Exploitation: poc Automatable: yes Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2024-09-18 17:27 UTC
    CWE
    • CWE-704 - Incorrect Type Conversion or Cast
    Impacted products
    Vendor Product Version
    OpenPLC OpenPLC_v3 Affected: 16bf8bac1a36d95b73e7b8722d0edb8b9c5bb56a
    Create a notification for this product.
    openplcproject openplc_v3 Affected: 16bf8bac1a36d95b73e7b8722d0edb8b9c5bb56a
        cpe:2.3:h:openplcproject:openplc_v3:-:*:*:*:*:*:*:*
    Create a notification for this product.
    Show details on NVD website

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    CVE-2021-3351 (GCVE-0-2021-3351)

    Vulnerability from cvelistv5 – Published: 2021-08-02 05:22 – Updated: 2024-08-03 16:53
    VLAI
    Summary
    OpenPLC runtime V3 through 2016-03-14 allows stored XSS via the Device Name to the web server's Add New Device page.
    Severity
    No CVSS data available.
    CWE
    • n/a
    References
    Show details on NVD website

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