VYPR
Vendor

EIPStackGroup

Products
1
CVEs
18
Across products
18
Status
Private

Products

1

Recent CVEs

18
  • CVE-2022-43605CriMar 16, 2023
    risk 0.66cvss 10.0epss 0.14

    An out-of-bounds write vulnerability exists in the SetAttributeList attribute_count_request functionality of EIP Stack Group OpENer development commit 58ee13c. A specially crafted EtherNet/IP request can lead to an out of bounds write, potentially causing the server to crash or…

  • CVE-2021-21777CriJun 17, 2021
    risk 0.65cvss 10.0epss 0.02

    An information disclosure vulnerability exists in the Ethernet/IP UDP handler functionality of EIP Stack Group OpENer 2.3 and development commit 8c73bf3. A specially crafted network request can lead to an out-of-bounds read.

  • CVE-2026-51540CriJul 13, 2026
    risk 0.64cvss 9.8epss 0.00

    OpENer 2.3.0 (master branch up to commit 76b95cf) is vulnerable to a severe memory corruption issue caused by an integer underflow in the processing of connected explicit messages (SendUnitData).

  • CVE-2020-13556CriDec 11, 2020
    risk 0.64cvss 9.8epss 0.05

    An out-of-bounds write vulnerability exists in the Ethernet/IP server functionality of EIP Stack Group OpENer 2.3 and development commit 8c73bf3. A specially crafted series of network requests can lead to remote code execution. An attacker can send a sequence of requests to…

  • CVE-2026-51541CriJul 13, 2026
    risk 0.59cvss 9.1epss 0.00

    OpENer 2.3.0 (commit 76b95cf) has an out-of-bounds read issue in CIP message parsing when handling malformed explicit requests with a forged EPath size. An attacker can send a valid ENIP SendRRData frame carrying a very short CIP payload whose path_size field claims that many…

  • CVE-2026-51538CriJul 13, 2026
    risk 0.59cvss 9.1epss 0.00

    EIPStackGroup OpENer 2.3.0 (commit 76b95cf) suffers from an Incorrect Access Control vulnerability in its handling of encapsulation sessions. When the server processes critical encapsulation commands, it verifies whether the provided session_handle exists in the global session…

  • CVE-2026-51537CriJul 13, 2026
    risk 0.59cvss 9.1epss 0.00

    EIPStackGroup OpENer 2.3.0 (commit 76b95cf) has an out-of-bounds read issue in Connection Manager handling of ForwardOpen requests when processing short malformed packets. An attacker can send a valid ENIP outer frame carrying a malformed CIP ForwardOpen/LargeForwardOpen…

  • CVE-2026-51536CriJul 13, 2026
    risk 0.59cvss 9.1epss 0.00

    In OpENer 2.3.0 (commit 76b95cf) when parsing incoming CIP (Common Industrial Protocol) network packets, the length parameter is inconsistently typed across the call stack. Specifically, an upstream length calculated as an int is passed to a downstream function that expects an…

  • CVE-2021-27478HigMay 12, 2022
    risk 0.53cvss 8.2epss 0.01

    A specifically crafted packet sent by an attacker to EIPStackGroup OpENer EtherNet/IP commits and versions prior to Feb 10, 2021 may cause a denial-of-service condition.

  • CVE-2022-32434HigJul 15, 2022
    risk 0.51cvss 7.8epss 0.01

    EIPStackGroup OpENer v2.3.0 was discovered to contain a stack overflow via /bin/posix/src/ports/POSIX/OpENer+0x56073d.

  • CVE-2021-27500HigMay 12, 2022
    risk 0.49cvss 7.5epss 0.01

    A specifically crafted packet sent by an attacker to EIPStackGroup OpENer EtherNet/IP commits and versions prior to Feb 10, 2021 may result in a denial-of-service condition.

  • CVE-2021-27498HigMay 12, 2022
    risk 0.49cvss 7.5epss 0.01

    A specifically crafted packet sent by an attacker to EIPStackGroup OpENer EtherNet/IP commits and versions prior to Feb 10, 2021 may result in a denial-of-service condition.

  • CVE-2021-27482HigMay 12, 2022
    risk 0.49cvss 7.5epss 0.01

    A specifically crafted packet sent by an attacker to EIPStackGroup OpENer EtherNet/IP commits and versions prior to Feb 10, 2021 may allow the attacker to read arbitrary data.

  • CVE-2020-13530HigDec 11, 2020
    risk 0.49cvss 7.5epss 0.02

    A denial-of-service vulnerability exists in the Ethernet/IP server functionality of the EIP Stack Group OpENer 2.3 and development commit 8c73bf3. A large number of network requests in a small span of time can cause the running program to stop. An attacker can send a sequence of…

  • CVE-2026-10703MedJun 3, 2026
    risk 0.41cvss 6.3epss 0.00

    A security vulnerability has been detected in EIPStackGroup OpENer up to 2.3.0. Affected is the function CreateMessageRouterRequestStructure of the file cipmessagerouter.c of the component SendRRData Handler. The manipulation leads to use after free. Remote exploitation of the…

  • CVE-2026-38719MedMay 18, 2026
    risk 0.40cvss 6.2epss 0.00

    OpENer v2.3-558-g1e99582 contains an out-of-bounds read vulnerability in the Common Packet Format (CPF) parser, specifically in CreateCommonPacketFormatStructure() in source/src/enet_encap/cpf.c. A crafted ENIP/CPF message can supply an attacker-controlled item_count value that…

  • CVE-2026-51535HigJul 8, 2026
    risk 0.00cvss 7.5epss 0.00

    In OpENer 2.3.0 (commit 76b95cf), a resource exhaustion (Denial of Service) vulnerability exists in its network processing loop.

  • CVE-2026-51221HigJun 29, 2026
    risk 0.00cvss 7.5epss 0.00

    A buffer overflow in the Get_Attribute_List function of EIPStackGroup OpENer commit 76b95c allows attackers to cause a Denial of Service (DoS) via supplying a crafted Common Packet Format (CPF) packet.