CVE-2022-43606

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 8.0% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2023-03-16 · updated 2026-06-17
Weakness: CWE-824

Description

A use-of-uninitialized-pointer vulnerability exists in the Forward Open connection_management_entry functionality of EIP Stack Group OpENer development commit 58ee13c. A specially-crafted EtherNet/IP request can lead to use of a null pointer, causing the server to crash. An attacker can send a series of EtherNet/IP requests to trigger this vulnerability.

Affected products

EIPStackGroup OpENer EtherNet/IP: before 2022-10-18 — fixed in 2022-10-18

How to fix

Upgrade to a fixed version: EIPStackGroup OpENer EtherNet/IP 2022-10-18. Check the vendor advisory for mitigations.

References

https://talosintelligence.com/vulnerability_reports/TALOS-2022-1663
https://talosintelligence.com/vulnerability_reports/TALOS-2022-1663
https://www.talosintelligence.com/vulnerability_reports/TALOS-2022-1663

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