CVE-2026-82785

State: Published
Severity: 5.3 Medium
Published: Sep 14, 2026
Updated: Sep 14, 2026
Reserved: Aug 31, 2026

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.

Scores

CVSS	Score	Vector	Source
4.0	5.3 Medium	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N	jpcert
3.1	4.3 Medium	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L	jpcert

Weaknesses

CWE-121 Stack-based buffer overflow

Affected Products

Product	Versions
Remote I/O Coupler Unit (Server Type) CPSN-MCB271-*Contec Co., Ltd.	before 1.82Affected

References

https://www.contec.com/api/downloadlogger?download=/-/media/Contec/support/security-info/2026/contec_security_cps_26091000_en.pdf
https://jvn.jp/en/vu/JVNVU96551518/

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