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TI-2026-57100 Aliases CVE-2026-82782GHSA-5h5q-r46r-p7qx

Out-of-bounds write in Contec Co., Ltd. Remote I/O Coupler Unit CPSN-MCB271-*

Priority LOW 24CWE-787Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
None · None · Low
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00455 39th percentileScored 2026-11-07
Fix Fixed Remote I/O Coupler Unit (Server Type) CPSN-MCB271-* (Contec Co., Ltd.): 1.82Remote I/O Coupler Unit (EtherNet/IP Adapter) CPSN-EOB471EI-[]1 (Contec Co., Ltd.): 1.02+1 more product

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
Contec Co., Ltd.Remote I/O Coupler Unit (Server Type) CPSN-MCB271-*before 1.821.82Patch availableCNA
Contec Co., Ltd.Remote I/O Coupler Unit (EtherNet/IP Adapter) CPSN-EOB471EI-[]1before 1.021.02Patch availableCNA
Contec Co., Ltd.Programmable Remote I/O Coupler Unit (Software PLC Type) CPSN-PCB271-S1-041before 1.611.61Patch availableCNA
  • Remote I/O Coupler Unit (Server Type) CPSN-MCB271-* VendorContec Co., Ltd. Affected before 1.82 Fixed in 1.82 Patch available CNA
  • Remote I/O Coupler Unit (EtherNet/IP Adapter) CPSN-EOB471EI-[]1 VendorContec Co., Ltd. Affected before 1.02 Fixed in 1.02 Patch available CNA
  • Programmable Remote I/O Coupler Unit (Software PLC Type) CPSN-PCB271-S1-041 VendorContec Co., Ltd. Affected before 1.61 Fixed in 1.61 Patch available CNA

Remediation

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

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Contec Remote I/O Coupler Unit (Server Type) CPSN-MCB271-* 1.82

    7 records Highest priority Priority LOW 7 LOW

    Other records, highest priority first

    • TI-2026-57102 Missing authentication in Contec Co., Ltd. Remote I/O Coupler Unit CPSN-MCB271-*Priority LOW 36
    • TI-2026-57104 Insufficiently protected credentials in Contec Co., Ltd. Remote I/O Coupler Unit…Priority LOW 35
    • TI-2026-57103 Stack-based buffer overflow in Contec Co., Ltd. Remote I/O Coupler Unit CPSN-MCB271-*Priority LOW 25
    Show all 7 records →
  • Release ·

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

    4 records Highest priority Priority LOW 4 LOW

    Other records, highest priority first

    • TI-2026-57099 Cross-site scripting in Contec Co., Ltd. Remote I/O Coupler Unit CPSN-MCB271-*Priority LOW 23
    • TI-2026-57082 Cross-site request forgery in Contec Co., Ltd. FXA5000Priority LOW 23
    • TI-2026-57101 Plaintext storage of a password issue exists in CONPROSYS nano Series .Priority LOW 18
    Show all 4 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-82782
  2. 2026-10-03 Alias added: GHSA-5h5q-r46r-p7qx

References

Other 2

  • TI-2022-11821 SolarView Compact ver.6.00 was discovered to contain a command injection vulnerability via conf_mail.php. KEVCVSS 3.1CRITICAL 9.8
  • TI-2023-09196 There is a command injection vulnerability in SolarView Compact through 6.00, attackers… CVSS 3.1CRITICAL 9.8
  • TI-2022-21852 OS command injection in Contec Co., Ltd. CONPROSYS HMI System CVSS 3.1CRITICAL 9.8
  • TI-2023-14072 SolarView Compact <= 6.0 is vulnerable to Insecure Permissions. CVSS 3.1CRITICAL 9.8
  • TI-2022-21787 SolarView Compact 4.0 and 5.0 is vulnerable to Unrestricted File Upload via a crafted php file. CVSS 3.1CRITICAL 9.8
  • TI-2022-19462 SolarView Compact 6.00 was discovered to contain a command injection vulnerability via network_test.php CVSS 3.1CRITICAL 9.8
See all 80 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences