CVE-2026-78012: critical vulnerability in Pyramid Solutions EtherNet/IP Adapter…
Stack-based Buffer Overflow in Pyramid Solutions NetStaX EtherNet/IP Stack
Published · Updated
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28Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 9.3epss 0.6%
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.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Affected products
Pyramid Solutions · EtherNet/IP Adapter Development Kit (EADK)Pyramid Solutions · EtherNet/IP Adapter Development Kit with CIP Security (EADK-SECURE)Pyramid Solutions · EtherNet/IP Adapter DLL Kit (EIPA)Pyramid Solutions · EtherNet/IP Adapter DLL Kit with CIP Security (EIPA-SECURE)Pyramid Solutions · EtherNet/IP Scanner Development Kit (ESDK)Pyramid Solutions · EtherNet/IP Scanner Development Kit with CIP Security (ESDK-SECURE)Pyramid Solutions · EtherNet/IP Scanner DLL Kit (EIPS)Pyramid Solutions · EtherNet/IP Scanner DLL Kit with CIP Security (EIPS-SECURE)Related CVEs — Pyramid Solutions EtherNet/IP Adapter…
In the same product, most dangerous first.