CVE-2020-13556

CriticalCVSS 9.8/10Last modified Jun 17, 2026

Description

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 trigger this vulnerability.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-787

Affected software

No affected versions have been published.

Timeline

Published
Dec 11, 2020
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2020-13556: Critical severity, CVSS 9.8 | Vulnix