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CVE-2026-9348— Edimax EW-7438RPn webs mp stack-based overflow

Quick assessment

Affected

Edimax EW-7438RPn

Exploitation

Public or AI PoC available; prioritize validation

Recommended action

Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Edimax EW-7438RPn是中国台湾讯舟（Edimax）公司的一款无线信号扩展器。 Edimax EW-7438RPn 1.31及之前版本存在安全漏洞，该漏洞源于webs组件文件/goform/mp中未知功能对参数webs的操作，可能导致栈缓冲区溢出。

CVSS 8.8 · High EPSS 0.45% · P37 Updated May 28, 2026

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 32

Vendor	Product	Version Range	Status
Edimax	EW-7438RPn	`1.0`	affected
		`1.1`	affected
		`1.2`	affected
		`1.3`	affected
		`1.4`	affected
		`1.5`	affected
		`1.6`	affected
		`1.7`	affected
… +24 more rows

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I. Basic Information for CVE-2026-9348

Vulnerability Information

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Vulnerability Title

Edimax EW-7438RPn webs mp stack-based overflow

Source: CVE Program / CVE List V5

Vulnerability Description

A vulnerability was found in Edimax EW-7438RPn up to 1.31. Affected by this vulnerability is an unknown functionality of the file /goform/mp of the component webs. The manipulation of the argument webs results in stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.

Source: CVE Program / CVE List V5

CVSS Information

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Source: CVE Program / CVE List V5

Vulnerability Type

栈缓冲区溢出

Source: CVE Program / CVE List V5

Vulnerability Title

Edimax EW-7438RPn 安全漏洞

Source: CNNVD (China National Vulnerability Database)

Vulnerability Description

Source: CNNVD (China National Vulnerability Database)

CVSS Information

N/A

Source: CNNVD (China National Vulnerability Database)

Vulnerability Type

N/A

Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor	Product	Affected Versions	CPE	Subscribe
Edimax	EW-7438RPn	1.0	`cpe:2.3:a:edimax:ew-7438rpn::::::::`

II. Public POCs for CVE-2026-9348

#	POC Description	Source Link	Shenlong Link

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III. Intelligence Information for CVE-2026-9348

请登录查看更多情报信息。

Other References for CVE-2026-9348 (1)

🔗 my_vuln/Edimax/vuln_6/6.md at main · wudipjq/my_vuln · GitHub Read full article exploit

https://www.cve.org/CVERecord?id=CVE-2026-9348

Same Patch Batch · Edimax · 2026-05-24 · 20 CVEs total

CVE-2026-9344	8.8 HIGH	Edimax EW-7438RPn webs formWpsStart stack-based overflow
CVE-2026-9401	8.8 HIGH	Edimax BR-6675nD POST Request formWanTcpipSetup buffer overflow
CVE-2026-9345	8.8 HIGH	Edimax EW-7438RPn webs formWizSurvey buffer overflow
CVE-2026-9399	8.8 HIGH	Edimax BR-6675nD POST Request formsetPPPoE buffer overflow
CVE-2026-9382	8.8 HIGH	Edimax BR-6675nD POST Request formPPTPSetup buffer overflow
CVE-2026-9381	8.8 HIGH	Edimax BR-6675nD POST Request formPPPoESetup buffer overflow
CVE-2026-9380	8.8 HIGH	Edimax BR-6675nD POST Request formL2TPSetup buffer overflow
CVE-2026-9346	8.8 HIGH	Edimax EW-7438RPn webs formWirelessTbl buffer overflow
CVE-2026-9403	8.8 HIGH	Edimax BR-6675nD POST Request formWlSiteSurvey buffer overflow
CVE-2026-9360	8.8 HIGH	Edimax EW-7438RPn POST Request formwlencrypt24g buffer overflow
CVE-2026-9378	6.3 MEDIUM	Edimax BR-6675nD POST Request formHwSet command injection
CVE-2026-9347	6.3 MEDIUM	Edimax EW-7438RPn webs formWizSurvey os command injection
CVE-2026-9359	6.3 MEDIUM	Edimax EW-7438RPn POST Request formHwSet command injection
CVE-2026-9361	6.3 MEDIUM	Edimax EW-7438RPn POST Request formAccep formAccept command injection
CVE-2026-9362	6.3 MEDIUM	Edimax EW-7438RPn Setting formConnectionSetting command injection
CVE-2026-9363	6.3 MEDIUM	Edimax EW-7438RPn POST Request formEZCHNwlanSetu formEZCHNwlanSetup command injection
CVE-2026-9379	6.3 MEDIUM	Edimax BR-6675nD POST Request formWpsStart command injection
CVE-2026-9400	6.3 MEDIUM	Edimax BR-6675nD POST Request formUSBStorage command injection
CVE-2026-9402	6.3 MEDIUM	Edimax BR-6675nD POST Request formWlanMP command injection

IV. Related Vulnerabilities

Same product: EW-7438RPn

Same vendor: Edimax

Same weakness: CWE-121

V. Comments for CVE-2026-9348

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Goal Reached Thanks to every supporter — we hit 100%!

CVE-2026-9348— Edimax EW-7438RPn webs mp stack-based overflow

Quick assessment

Possible ATT&CK Techniques 1 AI

Affected Version Matrix 32

I. Basic Information for CVE-2026-9348

Vulnerability Information

Vulnerability Title

Vulnerability Description

CVSS Information

Vulnerability Type

Vulnerability Title

Vulnerability Description

CVSS Information

Vulnerability Type

Affected Products

II. Public POCs for CVE-2026-9348

III. Intelligence Information for CVE-2026-9348

Other References for CVE-2026-9348 (1)

Same Patch Batch · Edimax · 2026-05-24 · 20 CVEs total

IV. Related Vulnerabilities

V. Comments for CVE-2026-9348

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