CVE-2026-9426

Edimax EW-7438RPn formHwSet stack-based overflow

State: Published
Severity: 8.7 High
Published: May 25, 2026
Updated: May 26, 2026
Reserved: May 24, 2026

Description

A vulnerability was detected in Edimax EW-7438RPn 1.31. This affects the function formHwSet of the file /goform/formHwSet. The manipulation of the argument Anntena/Mcs/regDomain/nic0Addr/nic1Addr/wlanAddr/wanAddr/wlanSSID/wlanChan/initgain/txcck/txofdm/submit-url results in stack-based buffer overflow. The attack can be executed 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.

Scores

CVSS	Score	Vector	Source
4.0	8.7 High	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P	VulDB
3.1	8.8 High	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R	VulDB
3.0	8.8 High	CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R	VulDB
2.0	9.0 High	AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR	VulDB

Weaknesses

CWE-121 Stack-based Buffer Overflow
CWE-119 Memory Corruption

Affected Products

Product	Versions
EW-7438RPnEdimax	1.31Affected

References

VDB-365407 | Edimax EW-7438RPn formHwSet stack-based overflowvdb-entrytechnical-description
VDB-365407 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
Submit #813894 | Edimax EW-7438RPn 1.31 Stack-based Buffer Overflowthird-party-advisory
https://github.com/wudipjq/my_vuln/blob/main/Edimax/vuln_10/10.mdexploit

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