HIGH

CVE-2026-75351

CVSS v3

7.5

HIGH

EPSS Score

—

exploit probability

CISA KEV

known exploited

Exploitation

—

SSVC status

Description

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

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published: 2026-10-09
Last Modified: 2026-10-09

Frequently asked questions

What is CVE-2026-75351?

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

Is CVE-2026-75351 actively exploited?

Active exploitation of CVE-2026-75351 has not been confirmed.

What is the CVSS score for CVE-2026-75351?

CVE-2026-75351 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Is CVE-2026-75351 affecting your environment?

Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.

Check an IP Search CVEs SIEM & TIP integrations

No credit card required · 50 free checks/month · Free API key

Other 2026 vulnerabilities worth triaging

Ranked by exploit probability (EPSS).

Back to CVE Database