CVEvulnerability

CVE-2021-36765

7.5 HIGH Published 2021-08-04 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2021-08-04
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS 2.0 ([email protected])
5.0 MEDIUM — AV:N/AC:L/Au:N/C:P/I:N/A:N
Weaknesses
CWE-476

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.

Affected configurations

• codesys ethernetip (< 4.1.0.0)

Related

Weakness · CWE (1)

  • CWE-476 NULL Pointer Dereference weakness

References