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Medium · 4.3 CVE-2026-82782 EUVD-2026-77235GHSA-5h5q-r46r-p7qx

Out-of-bounds write vulnerability exists in CONPROSYS nano Series. Receiving a specially crafted request created and sent by a remote attac…

Published Sep 14, 2026 · Updated Sep 14, 2026 · Assigned by jpcert

Vendor: Contec Product: Programmable Remote I/O Coupler Unit (Software PLC Type) CPSN-PCB271-S1-041 Product: Remote I/O Coupler Unit (EtherNet/IP Adapter) CPSN-EOB471EI-[]1 Product: Remote I/O Coupler Unit (Server Type) CPSN-MCB271-*

Description

Out-of-bounds write vulnerability exists in CONPROSYS nano Series. Receiving a specially crafted request created and sent by a remote attacker may cause a denial-of-service (DoS) condition.

Affected products

VendorProductAffectedFixed
Contec Remote I/O Coupler Unit (Server Type) CPSN-MCB271-* < 1.82 1.82
Contec Remote I/O Coupler Unit (EtherNet/IP Adapter) CPSN-EOB471EI-[]1 < 1.02 1.02
Contec Programmable Remote I/O Coupler Unit (Software PLC Type) CPSN-PCB271-S1-041 < 1.61 1.61

References