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    CVE-2026-75352

    OpENer v2.3/commit 76b95cf, contains an integer underflow in the server-side EtherNet/IP ForwardOpen connection-path parser. This allows a remote attacker to cause a denial of service

    Published:Oct 9, 2026
    Last Modified:Oct 13, 2026
    EPS:Oct 9, 2026
    EPSS Score:0.0019
    CVSS Score:7.5

    Affected Products

    Vendor
    Eipstackgroup
    Product
    Opener

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2026-75353 (CVSS 7.5) — OpENer v2.3/ commit 76b95cf, contains an out-of-bounds read in the server-side EtherNet/IP ForwardOpen connect…
    CVE-2026-75347 (CVSS 7.5) — EIPStackGroup OpENer v2.3 and master up to commit 76b95cf contain an expired pointer dereference vulnerability…
    CVE-2026-75349 (CVSS 7.5) — EIPStackGroup OpENer v2.3.0/master up to commit 76b95cf contains an out-of-bounds read vulnerability in Connec…
    CVE-2026-75350 (CVSS 7.5) — EIPStackGroup OpENer v2.3 / master commit 76b95cf contains a buffer overflow in the GetAttributeList() impleme…
    CVE-2026-75345 (CVSS 7.5) — OpENer v2.3.0 / commit 76b95cf contains an out-of-bounds read in the unconnected explicit messaging path. This…
    CVE-2026-75346 (CVSS 7.5) — An out-of-bounds read vulnerability exists in EIPStackGroup OpENer v2.3 and master through commit 76b95cf in t…
    CVE-2026-75348 (CVSS 7.5) — An out-of-bounds read vulnerability exists in EIPStackGroup OpENer v2.3 and master up to commit 76b95cf in the…
    CVE-2026-75351 (CVSS 7.5) — OpENer v2.3/commit 76b95cf, contains an out-of-bounds read in the server-side EtherNet/IP ForwardOpen connecti…
    CVE-2026-51540 (CVSS 9.8) — OpENer 2.3.0 (master branch up to commit 76b95cf) is vulnerable to a severe memory corruption issue caused by …
    CVE-2026-51541 (CVSS 9.1) — OpENer 2.3.0 (commit 76b95cf) has an out-of-bounds read issue in CIP message parsing when handling malformed e…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High