CVE-2021-36765

HighCVSS 7.5/10Last modified Jun 17, 2026

Description

In CODESYS EtherNetIP before 4.1.0.0, specific EtherNet/IP requests may cause a null pointer dereference in the downloaded vulnerable EtherNet/IP stack that is executed by the CODESYS Control runtime system.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Weakness enumeration

CWE-476

Affected software

No affected versions have been published.

Timeline

Published
Aug 4, 2021
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2021-36765: High severity, CVSS 7.5 | Vulnix