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CVE-2026-9345— Edimax EW-7438RPn webs formWizSurvey buffer 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/formWizSurvey中函数formWizSurvey对参数ssid/manualssid/ip/mask/gateway的操作，可能导致缓冲区溢出。

CVSS 8.8 · High EPSS 0.54% · P43

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 32

VendorProduct Version RangeStatus
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-2026-9345

Vulnerability Information
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Vulnerability Title
Edimax EW-7438RPn webs formWizSurvey buffer overflow
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was detected in Edimax EW-7438RPn up to 1.31. This affects the function formWizSurvey of the file /goform/formWizSurvey of the component webs. Performing a manipulation of the argument ssid/manualssid/ip/mask/gateway results in buffer overflow. The attack is possible to be carried out 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.
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
未进行输入大小检查的缓冲区拷贝(传统缓冲区溢出)
Source: CVE Program / CVE List V5
Vulnerability Title
Edimax EW-7438RPn 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
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/formWizSurvey中函数formWizSurvey对参数ssid/manualssid/ip/mask/gateway的操作，可能导致缓冲区溢出。
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-2026-9345

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 8327 chars
Pro+ exclusive includes:
Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
Full executable POC code
Exploit chain & mitigation
POC zip download
100+ AI POC generations per month

III. Intelligence Information for CVE-2026-9345

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Other References for CVE-2026-9345 (1)

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-2026-9346 8.8 HIGH Edimax EW-7438RPn webs formWirelessTbl 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-2026-9403 8.8 HIGH Edimax BR-6675nD POST Request formWlSiteSurvey buffer overflow
CVE-2026-9348 8.8 HIGH Edimax EW-7438RPn webs mp stack-based 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-120

V. Comments for CVE-2026-9345

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