Is CVE-2026-82791 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-82791 being exploited in the wild.

How severe is CVE-2026-82791?

High severity, with a CVSS score of 8.8, published 14 September 2026.

Which products and versions are affected?

Contec CAN-2-USB prior to 2.20; Contec CAN-2-WF prior to 2.20.

Is there a fix for CVE-2026-82791?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-82791 attacked?

It is attacked over the network, in a network appliance.

Am I affected by CVE-2026-82791?

Check whether you run Contec CAN-2-USB or Contec CAN-2-WF at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-82791: Contec CAN 2.0B Communication Wireless LAN/USB Converter OS command injection

CVE-2026-82791 · Severity: high · CVSS 8.8 · Published 2026-09-14

Contec's CAN 2.0B Communication Wireless LAN/USB Converter Unit is an industrial networking device used to connect legacy CAN bus systems to modern networks. An authenticated attacker with login access can exploit a command injection vulnerability to execute arbitrary operating system commands with device-level privileges, potentially compromising industrial control systems and the networks they support.

Vendors: Contec.

Quick answers

Is CVE-2026-82791 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-82791 being exploited in the wild.
How severe is CVE-2026-82791?: High severity, with a CVSS score of 8.8, published 14 September 2026.
Which products and versions are affected?: Contec CAN-2-USB prior to 2.20; Contec CAN-2-WF prior to 2.20.
Is there a fix for CVE-2026-82791?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-82791 attacked?: It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-82791?: Check whether you run Contec CAN-2-USB or Contec CAN-2-WF at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

An OS command injection vulnerability (CWE-78) exists in the device's command processing logic that fails to properly neutralize special shell characters. The vulnerability requires valid authentication credentials, but no user interaction is needed once an attacker is logged in. An authenticated attacker can inject shell metacharacters into input fields to break out of intended command context and execute arbitrary OS commands with the device's privileges. This could lead to complete device compromise, unauthorized network access, or manipulation of industrial control data. Firmware updates to version 2.20 or later for affected models (CAN-2-WF and CAN-2-USB) address this issue.

Affected products

Contec CAN-2-WF prior to 2.20
Contec CAN-2-USB prior to 2.20

Timeline

2026-09-14: disclosed

References

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