CVE-2026-9480: Edimax EW-7438RPn formrefresh stack-based overflow

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-05-25 · updated 2026-07-23
Weakness: CWE-119

Description

A vulnerability was detected in Edimax EW-7438RPn 1.31. The impacted element is the function formrefresh of the file /goform/formrefresh. The manipulation of the argument submit-url results in stack-based buffer overflow. It is possible to launch the attack remotely. 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 products

Edimax EW-7438RPn: 1.31

References

https://github.com/wudipjq/my_vuln/blob/main/Edimax/vuln_18/18.md
https://vuldb.com/submit/813902
https://vuldb.com/vuln/365461
https://vuldb.com/vuln/365461/cti

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