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CVE-2026-9425— Edimax EW-7438RPn formWlanMP 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版本存在安全漏洞，该漏洞源于对文件/goform/formWlanMP中函数formWlanMP的参数操作，可能导致栈缓冲区溢出。

CVSS 8.8 · High EPSS 0.80% · P56

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
Edimax EW-7438RPn 1.31 affected
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I. Basic Information for CVE-2026-9425

Vulnerability Information
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Vulnerability Title
Edimax EW-7438RPn formWlanMP stack-based overflow
Source: CVE Program / CVE List V5
Vulnerability Description
A security vulnerability has been detected in Edimax EW-7438RPn 1.31. The impacted element is the function formWlanMP of the file /goform/formWlanMP. The manipulation of the argument ateFunc/ateGain/ateTxCount/ateChan/ateRate/ateMacID/e2pTxPower1/e2pTxPower2/e2pTxPower3/e2pTxPower4/e2pTxPower5/e2pTxPower6/e2pTxPower7/e2pTx2Power1/e2pTx2Power2/e2pTx2Power3/e2pTx2Power4/e2pTx2Power5/e2pTx2Power6/e2pTx2Power7/ateTxFreqOffset/ateMode/ateBW/ateAntenna/e2pTxFreqOffset/e2pTxPwDeltaB/e2pTxPwDeltaG/e2pTxPwDeltaMix/e2pTxPwDeltaN/readE2P leads to stack-based buffer overflow. Remote exploitation of the attack is possible. The exploit has been disclosed publicly 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
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
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版本存在安全漏洞，该漏洞源于对文件/goform/formWlanMP中函数formWlanMP的参数操作，可能导致栈缓冲区溢出。
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 1.31 cpe:2.3:a:edimax:ew-7438rpn:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-9425

# POC Description Source Link Shenlong Link
AI-Generated POC Verified env Premium
Qwen3.6-35B-A3B · 9375 chars
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Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
Full executable POC code
Exploit chain & mitigation
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III. Intelligence Information for CVE-2026-9425

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Other References for CVE-2026-9425 (1)

Same Patch Batch · Edimax · 2026-05-25 · 19 CVEs total

CVE-2026-9460 8.8 HIGH Edimax EW-7438RPn formAccept stack-based overflow
CVE-2026-9482 8.8 HIGH Edimax EW-7438RPn formSDHCP stack-based overflow
CVE-2026-9480 8.8 HIGH Edimax EW-7438RPn formrefresh stack-based overflow
CVE-2026-9481 8.8 HIGH Edimax EW-7438RPn formStats stack-based overflow
CVE-2026-9479 8.8 HIGH Edimax EW-7438RPn formLogout stack-based overflow
CVE-2026-9462 8.8 HIGH Edimax EW-7438RPn formWpsProxyEnable stack-based overflow
CVE-2026-9463 8.8 HIGH Edimax EW-7438RPn formLicence stack-based overflow
CVE-2026-9459 8.8 HIGH Edimax EW-7438RPn formConnectionSetting stack-based overflow
CVE-2026-9461 8.8 HIGH Edimax EW-7438RPn formRadius stack-based overflow
CVE-2026-9443 8.8 HIGH Edimax BR-6478AC POST Request formL2TPSetup buffer overflow
CVE-2026-9442 8.8 HIGH Edimax BR-6478AC POST Request formiNICSiteSurvey buffer overflow
CVE-2026-9427 8.8 HIGH Edimax EW-7438RPn webs formWlSiteSurvey stack-based overflow
CVE-2026-9426 8.8 HIGH Edimax EW-7438RPn formHwSet stack-based overflow
CVE-2026-9424 6.3 MEDIUM Edimax EW-7438RPn Content-Type formWlanMP os command injection
CVE-2026-9441 6.3 MEDIUM Edimax BR-6478AC POST Request formiNICbasic command injection
CVE-2026-9440 6.3 MEDIUM Edimax BR-6478AC POST Request formAccept command injection
CVE-2026-9439 6.3 MEDIUM Edimax BR-6675nD stainfo command injection
CVE-2026-9423 4.7 MEDIUM Edimax BR-6675nD POST Request mp command injection

IV. Related Vulnerabilities

Same product: EW-7438RPn
Same vendor: Edimax
Same weakness: CWE-121

V. Comments for CVE-2026-9425

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