Vulnerabilities > CVE-2021-36765 - NULL Pointer Dereference vulnerability in Codesys Ethernetip

047910
CVSS 7.5 - HIGH
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
HIGH
Integrity impact
NONE
Availability impact
NONE
network
low complexity
codesys
CWE-476

Summary

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.

Vulnerable Configurations

Part Description Count
Application
Codesys
1

Common Weakness Enumeration (CWE)