TI-2022-21372 Aliases CVE-2022-43604 GHSA-6fr5-2xjv-gr58

Out-of-bounds write in EIPStackGroup OpENer

HIGH 82CWE-787Published 2023-03-16 · Updated 2025-03-05

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.

Summary

An out-of-bounds write vulnerability exists in the GetAttributeList attribute_count_request functionality of EIP Stack Group OpENer development commit 58ee13c. A specially crafted EtherNet/IP request can lead to an out-of-bounds write, potentially causing the server to crash or allow for remote code execution. An attacker can send a series of EtherNet/IP requests to trigger this vulnerability.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.14372 96th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: Yes
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
EIPStackGroup	OpENer	development commit 58ee13c	—	No fix listed	CNA

OpENer VendorEIPStackGroup Affected development commit 58ee13c Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:opener_project:opener::::::::	before 2022-10-18	Vulnerable	EIPStackGroup

cpe:2.3:a:opener_project:opener:*:*:*:*:*:*:*:* Versions before 2022-10-18 Vulnerable ·EIPStackGroup

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2022-43604
2026-10-03 Alias added: GHSA-6fr5-2xjv-gr58

References

Exploit 1

https://talosintelligence.com/vulnerability_reports/TALOS-2022-1661

TI-2026-37502 OpENer 2.3.0 (master branch up to commit 76b95cf) is vulnerable to a severe memory… CVSS 3.1CRITICAL 9.8
TI-2022-21373 Out-of-bounds write in EIPStackGroup OpENer CVSS 3.1CRITICAL 10.0
TI-2026-37503 OpENer 2.3.0 (commit 76b95cf) has an out-of-bounds read issue in CIP message parsing when… CVSS 3.1CRITICAL 9.1
TI-2026-37500 EIPStackGroup OpENer 2.3.0 (commit 76b95cf) suffers from an Incorrect Access Control… CVSS 3.1CRITICAL 9.1
TI-2026-37499 EIPStackGroup OpENer 2.3.0 (commit 76b95cf) has an out-of-bounds read issue in Connection… CVSS 3.1CRITICAL 9.1
TI-2026-37498 In OpENer 2.3.0 (commit 76b95cf) when parsing incoming CIP (Common Industrial Protocol)… CVSS 3.1CRITICAL 9.1

See all 15 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences