Unrestricted File Upload Vulnerability in Contec CAN 2.0B Communication Wireless LAN Converter
CVE-2026-82793

8.6HIGH

Key Information:

Vendor

Contec Co., Ltd.

Status
Can-2-wf
Can-2-usb
Vendor
CVE Published:
14 September 2026

What is CVE-2026-82793?

A vulnerability exists in the Contec CAN 2.0B Communication Wireless LAN / USB Converter Unit that allows authenticated remote attackers to upload specially crafted files. This issue can lead to arbitrary code execution on the device, potentially compromising the system's integrity and confidentiality. Users are advised to apply necessary patches and restrict file upload functionalities to mitigate risks associated with this vulnerability.

Affected Version(s)

CAN-2-USB 0 < 2.20

CAN-2-WF 0 < 2.20

References

https://www.contec.com/api/downloadlogger?download=/-/med...
https://jvn.jp/en/vu/JVNVU90314828/

CVSS V4

Score:
8.6
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.