CVE-2026-82791

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.9% 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-78

Description

Improper neutralization of special elements used in an OS command ('OS Command Injection') issue exists in Contec CAN 2.0B Communication Wireless LAN / USB Converter Unit. If this vulnerability is exploited, an arbitrary OS command may be executed by an attacker who can log in to 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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