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CVE-2026-19959— Edimax EW-7478APC formWanTcpipSetup stack-based overflow

Quick assessment

Affected
Edimax EW-7478APC
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Edimax EW-7478APC是中国Edimax公司的一款无线网络接入点设备。 Edimax EW-7478APC 1.04版本存在缓冲区错误漏洞，该漏洞源于/goform/formWanTcpipSetup文件中的formWanTcpipSetup函数对参数pppUserName的错误操作，可能导致栈缓冲区溢出，远程攻击者可能利用该漏洞。

CVSS 9.9 · Critical EPSS 0.80% · P56

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
Edimax EW-7478APC 1.04 affected
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I. Basic Information for CVE-2026-19959

Vulnerability Information
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Vulnerability Title
Edimax EW-7478APC formWanTcpipSetup stack-based overflow
Source: CVE Program / CVE List V5
Vulnerability Description
A weakness has been identified in Edimax EW-7478APC 1.04. This affects the function formWanTcpipSetup of the file /goform/formWanTcpipSetup. This manipulation of the argument pppUserName causes stack-based buffer overflow. Remote exploitation of the attack is possible. The exploit has been made available to the public and could be used for attacks. 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:C/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-7478APC 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Edimax EW-7478APC是中国Edimax公司的一款无线网络接入点设备。 Edimax EW-7478APC 1.04版本存在缓冲区错误漏洞，该漏洞源于/goform/formWanTcpipSetup文件中的formWanTcpipSetup函数对参数pppUserName的错误操作，可能导致栈缓冲区溢出，远程攻击者可能利用该漏洞。
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-7478APC 1.04 cpe:2.3:a:edimax:ew-7478apc:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-19959

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III. Intelligence Information for CVE-2026-19959

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Vendor Advisories for CVE-2026-19959 (2)

Security Blog Posts for CVE-2026-19959 (1)

Other References for CVE-2026-19959 (1)

Same Patch Batch · Edimax · 2026-08-16 · 5 CVEs total

CVE-2026-19961 9.9 CRITICAL Edimax EW-7478APC formWlSiteSurvey buffer overflow
CVE-2026-19960 7.4 HIGH Edimax EW-7478APC formWlbasic command injection
CVE-2026-19963 7.4 HIGH Edimax EW-7478APC stainfo command injection
CVE-2026-19962 7.4 HIGH Edimax EW-7478APC setWAN command injection

IV. Related Vulnerabilities

Same product: EW-7478APC
Same vendor: Edimax
Same weakness: CWE-121

V. Comments for CVE-2026-19959

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