Pyramid Solutions NetStaX EtherNet/IP Stack
Pyramid Solutions NetStaX EtherNet/IP Stack vulnerable to critical buffer overflow.
A critical vulnerability (CVE-2026-78012) has been identified in Pyramid Solutions' NetStaX EtherNet/IP Stack, affecting multiple versions of their DLL and Development Kits. Successful exploitation could lead to memory corruption, device crashes, or remote code execution without any error indication. The vulnerability is a stack-based buffer overflow that can be triggered by a large Class 3 explicit-message request.
AI summary of the linked source. Not reviewed by an editor. How this works
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The lesson from this incident
Full lessonA stack-based buffer overflow vulnerability in Pyramid Solutions' NetStaX EtherNet/IP Stack allows attackers to trigger memory corruption or remote code execution by sending an oversized Class 3 explicit-message request — critically, with no error indication to alert defenders. This type of vulnerability is especially dangerous in operational technology (OT) and industrial control system (ICS) environments where affected DLLs and development kits may be embedded in mission-critical devices with long patch cycles. The silent failure mode means compromised devices may continue operating while under attacker control, delaying detection. Because EtherNet/IP is widely used in industrial automation, exploitation could have cascading physical consequences beyond typical IT breaches.
What helps against this
How we list vendors- Automated patch management
Known holes get closed in days, not months.
- Network segmentation and microsegmentation
One compromised machine can no longer reach everything else.
- OT and industrial control system security
Factory, building and utility control systems get visibility and protection.
Indicators of Compromise
Extracted by AI from the linked source. Not reviewed by an editor. How this works
- cve — CVE-2026-78012