CVE-2026-9363: Edimax EW-7438RPn POST Request formEZCHNwlanSetu formEZCHNwlanSetup command injection
A vulnerability was detected in Edimax EW-7438RPn 1.12. This issue affects the function formEZCHNwlanSetup of the file /goform/formEZCHNwlanSetu of the component POST Request Handler. Performing a manipulation of the argument method results in command injection. Remote exploitation of the attack is possible. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Compensating control
Restrict access to the device management interface: disable remote/wan management, place the device on an isolated management VLAN, and restrict HTTP access to trusted IPs via firewall/ACL. If available, configure a WAF or firewall rule to block HTTP POST requests to the vulnerable endpoint /goform/formEZCHNwlanSetu (formEZCHNwlanSetup handler).
- Operational
Monitor vendor advisories and public exploit disclosures for a vendor-supplied patch. Apply vendor-released fixes immediately when available. If no fix is provided, consider replacing the affected Edimax EW-7438RPn device or removing it from networks where it can be reached by untrusted actors.
Event History
Frequently Asked Questions
What is the severity of CVE-2026-9363?
The severity of CVE-2026-9363 is rated as medium with a score of 6.3.
What type of vulnerability is CVE-2026-9363?
CVE-2026-9363 is a command injection vulnerability affecting the Edimax EW-7438RPn.
How do I fix CVE-2026-9363?
To fix CVE-2026-9363, you should update the Edimax EW-7438RPn to the latest firmware version provided by the vendor.
What component is affected by CVE-2026-9363?
CVE-2026-9363 affects the POST Request Handler in the formEZCHNwlanSetup function of the Edimax EW-7438RPn.
Can CVE-2026-9363 be exploited remotely?
Yes, CVE-2026-9363 can be exploited remotely due to its nature of command injection.