What’s Vulnerable › Vulnerabilities

CVE-2026-75347

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-09 · updated 2026-10-13
• Weakness: CWE-400

Description

EIPStackGroup OpENer v2.3 and master up to commit 76b95cf contain an expired pointer dereference vulnerability in the EtherNet/IP Common Packet Format (CPF) handling logic. This allows a remote attacker to cause a denial of service.

References

• https://github.com/EIPStackGroup/OpENer/blob/master/source/src/enet_encap/cpf.c
• https://github.com/EIPStackGroup/OpENer/blob/master/source/src/enet_encap/encap.c
• https://github.com/EIPStackGroup/OpENer/blob/master/source/src/ports/generic_networkhandler.c
• https://github.com/EIPStackGroup/OpENer/issues/575
• https://github.com/EIPStackGroup/OpENer/issues/575

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