What is CVE-2026-82790?

CVE-2026-82790 is a medium-severity vulnerability in Contec Co., Ltd. Pc-Helper Wireless I/o Dio-0404ry-Lwf, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-09-14.

How severe is CVE-2026-82790?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Contec Co., Ltd. Pc-Helper Wireless I/o Dio-0404ry-Lwf

CVE-2026-82790

Cross-site scripting vulnerability exists in PC-HELPER Wireless I/O DIO-0404RY-LWF and PC-HELPER Wireless I/O DIO-0404RY-LWF-US. If this vulnerability is exploited, an arbitrary script may be executed on a logged-in user's web browser.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.001 (3.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

Affected products

Contec Co., Ltd. Pc-helper Wireless I/o Dio-0404ry-lwf
Contec Co., Ltd. Pc-helper Wireless I/o Dio-0404ry-lwf-us

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

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

Frequently asked questions

What is CVE-2026-82790?: CVE-2026-82790 is a medium-severity vulnerability in Contec Co., Ltd. Pc-Helper Wireless I/o Dio-0404ry-Lwf, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-09-14.
How severe is CVE-2026-82790?: Medium severity. CVSS v3 base score is 5.4 out of 10.