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Weidmueller: EtherNet/IP Fieldbus Coupler out-of-bounds write

VDE-2021-004
Last update
21.06.2022 10:00
Published at
21.06.2022 10:00
Vendor(s)
Weidmueller Interface GmbH & Co. KG
External ID
VDE-2021-004
CSAF Document

Summary

A critical vulnerability has been discovered in the utilized component EtherNet/IP Adapter Development Kit (EADK) by Pyramid Solutions, Inc.. For details refer to CVE(s).This vulnerability may allow an attacker to send a specially crafted packet that may result in a denial-of-service condition of the affected products.
The indicated firmware versions are only used on products of hardware version 01.xx.xx.

Impact

Attackers with network access to the EtherNet/IP network may send a specially crafted packet that may result in a denial-of-service condition of the affected products which will cause them to crash. Crashed products will reboot within some seconds.

Affected Product(s)

Model no. Product name Affected versions
1334920000 UR20-FBC-EIP Firmware 01.00.00 <= 01.08.00

Vulnerabilities

Expand / Collapse all

Published
22.09.2025 14:58
Weakness
Out-of-bounds Write (CWE-787)
Summary

Pyramid Solutions' affected products, the Developer and DLL kits for EtherNet/IP Adapter and EtherNet/IP Scanner, are vulnerable to an out-of-bounds write, which may allow an unauthorized attacker to send a specially crafted packet that may result in a denial-of-service condition.

References

Mitigation

Weidmueller strongly recommends applying the following external protective measures:

Restrict network access to the EtherNet/IP network containing affected products.
If remote access is required, use secure methods such as virtual private networks (VPNs).

Revision History

Version Date Summary
1 21.06.2022 10:00 Initial revision.