RCE in Edimax Ew-7438rpn

CVE-2026-9347

A vulnerability has been found in Edimax EW-7438RPn up to 1.31. Affected is the function formWizSurvey of the file /goform/formWizSurvey of the component webs. The manipulation of the argument ip/mask/gateway leads to os command injection. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Vulnerability class: Command Injection (OS Command Injection)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.

EPSS exploit prediction

EPSS: 0.031 (87.3th percentile), scored .

Low probability of exploitation in the next 30 days, but still tracked. 87th percentile — 87.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-9347: rose from 0.015 to 0.031.

EPSS over last 30 days · oldest: 0.015 · newest: 0.031 · change: +0.016

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-9347?
CVE-2026-9347 is a medium-severity vulnerability in Edimax Ew-7438rpn, classified under Command Injection. CVSS score: 6.3/10. Published 2026-05-24.
How severe is CVE-2026-9347?
Medium severity. CVSS v3 base score is 6.3 out of 10.