What is CVE-2026-75347?

CVE-2026-75347 is a high-severity vulnerability in N/a. CVSS score: 7.5/10. Published 2026-10-09.

How severe is CVE-2026-75347?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in N/a

CVE-2026-75347

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.

Published 2026-10-09 · last modified 2026-10-09.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

References

github.com/EIPStackGroup/OpENer/issues/575
github.com/EIPStackGroup/OpENer/blob/master/source/src/enet_encap/cpf.c
github.com/EIPStackGroup/OpENer/blob/master/source/src/enet_encap/encap.c
github.com/EIPStackGroup/OpENer/blob/master/source/src/ports/generic_networkhan…

Frequently asked questions

What is CVE-2026-75347?: CVE-2026-75347 is a high-severity vulnerability in N/a. CVSS score: 7.5/10. Published 2026-10-09.
How severe is CVE-2026-75347?: High severity. CVSS v3 base score is 7.5 out of 10.