CVE-2026-82785
Received Received - Intake

Stack-based Buffer Overflow in Remote I/O Coupler Unit

Publication date: 2026-09-14

Last updated on: 2026-09-14

Assigner: JPCERT/CC

Description
Stack-based buffer overflow vulnerability exists in Remote I/O Coupler Unit (Server Type) CPSN-MCB271-*. Receiving a specially crafted request created and sent by a remote attacker may cause a denial-of-service (DoS) condition.

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Meta Information

Published
2026-09-14
Last Modified
2026-09-14
Generated
2026-09-14
AI Q&A
2026-09-14
EPSS Evaluated
N/A
NVD
CVE-2026-82785
EUVD
EUVD-2026-77238

Affected Vendors & Products

Currently, no data is known.

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-121 A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).

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Executive Summary

This is a stack-based buffer overflow vulnerability in the Remote I/O Coupler Unit (Server Type) CPSN-MCB271-*. A remote attacker can send a specially crafted request to cause a denial-of-service condition by crashing the system.

Impact Analysis

The vulnerability may allow an attacker to disrupt the operation of the affected device, leading to system crashes or unavailability. This could impact industrial processes or systems relying on the Remote I/O Coupler Unit.

Mitigation Strategies

Immediately apply vendor patches or updates for Remote I/O Coupler Unit (Server Type) CPSN-MCB271-* to address the stack-based buffer overflow vulnerability. Isolate affected systems from the network if patches are unavailable to prevent remote exploitation.

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