# CVE-2026-9363: Edimax EW-7438RPn command injection in formEZCHNwlanSetup

Source: https://junglewise.ai/threats/cve-2026-9363-edimax-ew-7438rpn-command-injection-in-formezchnwlansetup  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-05-24. Updated: 2026-05-26  
License: CC BY 4.0 with a link back

CVE-2026-9363 · Severity: medium · CVSS 6.3 · Published 2026-05-24

A security vulnerability exists in the Edimax EW-7438RPn Wi-Fi extender that allows an attacker to execute unauthorized commands on the device. By sending a specially crafted web request to the device's setup interface, an attacker could gain control over the hardware, potentially disrupting internet connectivity or monitoring network traffic. This issue is particularly concerning as technical details and exploit methods are publicly available, and the manufacturer has not yet released a fix.

Technologies: [Edimax EW-7438RPn](https://junglewise.ai/threats/technologies/ew-7438rpn). Vendors: [Edimax](https://junglewise.ai/threats/vendors/edimax).

## Quick answers

**Is CVE-2026-9363 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-9363 being exploited in the wild.

**How severe is CVE-2026-9363?** Medium severity, with a CVSS score of 6.3, published 24 May 2026.

**Which products and versions are affected?** Edimax EW-7438RPn 1.12.

**Is there a fix for CVE-2026-9363?** 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-2026-9363 attacked?** It is attacked over the network, in device firmware.

**Am I affected by CVE-2026-9363?** Check whether you run Edimax EW-7438RPn 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

A command injection vulnerability exists in the Edimax EW-7438RPn firmware version 1.12. The flaw is located within the 'formEZCHNwlanSetup' function in the '/goform/formEZCHNwlanSetup' endpoint, which handles POST requests. An attacker can manipulate the 'method' argument to inject and execute arbitrary shell commands on the underlying operating system. While the attack requires network reachability and low-level authentication (PR:L), the availability of public exploit code increases the risk of exploitation. As of the advisory date, the vendor has not responded to disclosure attempts, and no official patch is available.

## Affected products

- Edimax EW-7438RPn 1.12

## Timeline

- 2026-05-24: advisory: Initial disclosure by VulDB and NVD
- 2026-05-24: disclosed: Exploit code made public

## References

- [https://lavender-bicycle-a5a.notion.site/EDIMAX-BR-6675nD-formEZCHNwlanSetup-34b53a41781f803a8c60ca409394df5b?source=copy_link](https://lavender-bicycle-a5a.notion.site/EDIMAX-BR-6675nD-formEZCHNwlanSetup-34b53a41781f803a8c60ca409394df5b?source=copy_link)
- [https://vuldb.com/submit/811554](https://vuldb.com/submit/811554)
- [https://vuldb.com/vuln/365326](https://vuldb.com/vuln/365326)
- [https://vuldb.com/vuln/365326/cti](https://vuldb.com/vuln/365326/cti)

## Related threats

- [Edimax EW-7438RPn stack overflow in formSDHCP](https://junglewise.ai/threats/cve-2026-9482-edimax-ew-7438rpn-stack-overflow-in-formsdhcp)
- [Edimax EW-7438RPn stack overflow in formStats](https://junglewise.ai/threats/cve-2026-9481-edimax-ew-7438rpn-stack-overflow-in-formstats)
- [Edimax EW-7438RPn stack overflow in formrefresh](https://junglewise.ai/threats/cve-2026-9480-edimax-ew-7438rpn-stack-overflow-in-formrefresh)
- [Edimax EW-7438RPn stack overflow in formLogout](https://junglewise.ai/threats/cve-2026-9479-edimax-ew-7438rpn-stack-overflow-in-formlogout)
- [Edimax EW-7438RPn stack overflow in formLicence](https://junglewise.ai/threats/cve-2026-9463-edimax-ew-7438rpn-stack-overflow-in-formlicence)