What is CVE-2022-43606?

CVE-2022-43606 is a high-severity vulnerability in Eip Stack Group Opener, classified under Access of Uninitialized Pointer. CVSS score: 7.5/10. Published 2023-03-16.

How severe is CVE-2022-43606?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Eip Stack Group Opener

CVE-2022-43606

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.

Published 2023-03-16 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.080 (94.6th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 95th percentile — 94.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.080 · newest: 0.080 · change: 0.000

Affected products

Eip Stack Group Opener — versions development commit 58ee13c
Opener Project

Weakness classification (CWE)

CWE-824 — Access of Uninitialized Pointer

References

talosintelligence.com/vulnerability_reports/TALOS-2022-1663 (Exploit, Third Party Advisory)
af854a3a-2127-422b-91ae-364da2661108

Frequently asked questions

What is CVE-2022-43606?: CVE-2022-43606 is a high-severity vulnerability in Eip Stack Group Opener, classified under Access of Uninitialized Pointer. CVSS score: 7.5/10. Published 2023-03-16.
How severe is CVE-2022-43606?: High severity. CVSS v3 base score is 7.5 out of 10.