CVE Catalog
CVE-2026-51221
HighCVSS 7.5Exploitation Probability (EPSS)
Low risk0.17%
7th percentile — higher than 7% of all known CVEs
Summary
A buffer overflow vulnerability in the Get_Attribute_List function of EIPStackGroup OpENer (commit 76b95c) allows an attacker to cause a Denial of Service (DoS) by sending a crafted Common Packet Format (CPF) packet.
Risk Assessment
An attacker can remotely crash systems using the OpENer library, leading to disruption of industrial or automation services.
Recommendation
Immediately update the OpENer library to the latest patched version or apply the available fix from EIPStackGroup.
Original NVD description (English source)
A buffer overflow in the Get_Attribute_List function of EIPStackGroup OpENer commit 76b95c allows attackers to cause a Denial of Service (DoS) via supplying a crafted Common Packet Format (CPF) packet.