Critical Stack Overflow Found in Pyramid Solutions NetStaX EtherNet/IP Stack
CISA disclosed a critical stack-based buffer overflow (CVE-2026-78012) in Pyramid Solutions NetStaX EtherNet/IP Stack versions prior to 5.6.1. Exploitation could cause memory corruption, device crash, or remote attack. Affects multiple development kits used in critical manufacturing, energy, water, and chemical sectors. Fixed in v5.6.1.
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Summary last validated Sep 3, 2026
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