CVE-2026-82793

State: Published
Severity: 8.6 High
Published: Sep 14, 2026
Updated: Sep 14, 2026
Reserved: Aug 31, 2026

Description

Unrestricted upload of file with dangerous type issue exists in Contec CAN 2.0B Communication Wireless LAN / USB Converter Unit. If a specially crafted file is uploaded by a remote authenticated attacker, arbitrary code may be executed on the product.

Scores

CVSS	Score	Vector	Source
4.0	8.6 High	CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N	jpcert
3.1	7.2 High	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H	jpcert

Weaknesses

CWE-434 Unrestricted upload of file with dangerous type

Affected Products

Product	Versions
CAN-2-WFContec Co., Ltd.	before 2.20Affected
CAN-2-USBContec Co., Ltd.	before 2.20Affected

References

https://www.contec.com/api/downloadlogger?download=/-/media/Contec/support/security-info/2026/contec_security_ph_26091000_en.pdf
https://jvn.jp/en/vu/JVNVU90314828/

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