by Kastro CVE-2026-78012
Pyramid Solutions EtherNet/IP Adapter DLL Kit (EIPA) — Stack-based Buffer Overflow in Pyramid Solutions NetStaX EtherNet/IP Stack
Description · from the CVE record
An issue in the NetStaX EtherNet/IP Stack prior to v5.6.1 could allow a large Class 3 explicit-message request to exceed the application-side receive buffer without generating an error or warning. The result could be memory corruption, a device crash, or a potential remote attack vector without the originating device receiving a CIP error indicating that the request could not be processed.
Affected
ProductAffectedFixed inSource
EtherNet/IP Adapter DLL Kit (EIPA)≤ v5.6.1v5.6.1CNA
EtherNet/IP Adapter DLL Kit with CIP Security (EIPA-SECURE)≤ v5.6.1v5.6.1CNA
EtherNet/IP Adapter Development Kit (EADK)≤ v5.6.1v5.6.1CNA
EtherNet/IP Adapter Development Kit with CIP Security (EADK-SECURE)≤ v5.6.1v5.6.1CNA
EtherNet/IP Scanner DLL Kit (EIPS)≤ v5.6.1v5.6.1CNA
EtherNet/IP Scanner DLL Kit with CIP Security (EIPS-SECURE)≤ v5.6.1v5.6.1CNA
EtherNet/IP Scanner Development Kit (ESDK)≤ v5.6.1v5.6.1CNA
EtherNet/IP Scanner Development Kit with CIP Security (ESDK-SECURE)< v5.6.1v5.6.1CNA
Scores by source
icscert (CNA)9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
icscert (CNA)9.3CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total