CVE-2026-82783NVD

Vulnerability Summary

Plaintext storage of a password issue exists in CONPROSYS nano Series . If this vulnerability is exploited, an attacker with physical access to the product may obtain credentials.

Severity Level

MEDIUM(4.2)

Published Date

Sep 14, 2026

Last Modified

Sep 14, 2026

Exploitation Status

No confirmed exploitation yet

EPSS Score (30-Day)

0.13%Probability

Root Weakness (CWE)

CWE-256: Unknown/Unlisted Weakness ↗

Refer to the official MITRE database for detailed architectural specifications regarding this weakness.

CVSS v4.0 Base Metrics — Score 4.1 (MEDIUM)

Attack VectorPhysical

Attack ComplexityHigh

Attack RequirementsNone

Privileges RequiredNone

User InteractionNone

Confidentiality (Vulnerable System)High

Integrity (Vulnerable System)None

Availability (Vulnerable System)None

Confidentiality (Subsequent System)None

Integrity (Subsequent System)None

Availability (Subsequent System)None

CVSS v3.1 Base Metrics — Score 4.2 (MEDIUM)

Attack VectorPhysical

Attack ComplexityHigh

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

ConfidentialityHigh

IntegrityNone

AvailabilityNone

Affected & Patched Versions

Affected Versions

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

Patched Versions

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

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