CVE-2026-82793

Severity: high (CVSS 7.2 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-09-14 · updated 2026-09-16
Weakness: CWE-434

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.

Affected products

Contec Co., Ltd. CAN-2-USB: before 2.20 — fixed in 2.20
Contec Co., Ltd. CAN-2-WF: before 2.20 — fixed in 2.20

How to fix

Upgrade to a fixed version: Contec Co., Ltd. CAN-2-USB 2.20; Contec Co., Ltd. CAN-2-WF 2.20. Check the vendor advisory for mitigations.

References

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

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