What is CVE-2026-82791?

CVE-2026-82791 is a high-severity vulnerability in Contec Co., Ltd. Can-2-Usb, classified under OS Command Injection. CVSS score: 8.8/10. Published 2026-09-14.

How severe is CVE-2026-82791?

High severity. CVSS v3 base score is 8.8 out of 10.

RCE in Contec Co., Ltd. Can-2-Usb

CVE-2026-82791

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.

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.010 (61.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Contec Co., Ltd. Can-2-usb
Contec Co., Ltd. Can-2-wf

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

vultures@jpcert.or.jp
vultures@jpcert.or.jp

Frequently asked questions

What is CVE-2026-82791?: CVE-2026-82791 is a high-severity vulnerability in Contec Co., Ltd. Can-2-Usb, classified under OS Command Injection. CVSS score: 8.8/10. Published 2026-09-14.
How severe is CVE-2026-82791?: High severity. CVSS v3 base score is 8.8 out of 10.