Answer in brief
CVE-2026-78012 records a Unknown severity vulnerability in Stack-based Buffer Overflow in Pyramid Solutions NetStaX EtherNet/IP Stack. The current sources do not mark it as known exploited. The current feed maps Pyramid Solutions/EtherNet/IP Adapter Development Kit (EADK) (generic), Pyramid Solutions/EtherNet/IP Adapter Development Kit with CIP Security (EADK-SECURE) (generic), Pyramid Solutions/EtherNet/IP Adapter DLL Kit (EIPA) (generic), Pyramid Solutions/EtherNet/IP Adapter DLL Kit with CIP Security (EIPA-SECURE) (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Pyramid Solutions/EtherNet/IP Adapter Development Kit (EADK) (generic), Pyramid Solutions/EtherNet/IP Adapter Development Kit with CIP Security (EADK-SECURE) (generic), Pyramid Solutions/EtherNet/IP Adapter DLL Kit (EIPA) (generic), Pyramid Solutions/EtherNet/IP Adapter DLL Kit with CIP Security (EIPA-SECURE) (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Pyramid Solutions/EtherNet/IP Adapter Development Kit (EADK)generic | 0 | Not reported |
| Pyramid Solutions/EtherNet/IP Adapter Development Kit with CIP Security (EADK-SECURE)generic | 0 | Not reported |
| Pyramid Solutions/EtherNet/IP Adapter DLL Kit (EIPA)generic | 0 | Not reported |
| Pyramid Solutions/EtherNet/IP Adapter DLL Kit with CIP Security (EIPA-SECURE)generic | 0 | Not reported |
| Pyramid Solutions/EtherNet/IP Scanner Development Kit (ESDK)generic | 0 | Not reported |
| Pyramid Solutions/EtherNet/IP Scanner Development Kit with CIP Security (ESDK-SECURE)generic | >=0 <v5.6.1 | v5.6.1 |
| Pyramid Solutions/EtherNet/IP Scanner DLL Kit (EIPS)generic | 0 | Not reported |
| Pyramid Solutions/EtherNet/IP Scanner DLL Kit with CIP Security (EIPS-SECURE)generic | 0 | Not reported |
Published upstream
Sep 1, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 1, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Sep 1, 2026
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.
Quoted source text, attributed separately from HOL analysis.