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CVE-2026-19961— Edimax EW-7478APC formWlSiteSurvey buffer 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，该漏洞源于对/goform/formWlSiteSurvey文件中formWlSiteSurvey函数的参数selSSID操作不当，容易受到缓冲区溢出攻击。

CVSS 9.9 · Critical EPSS 0.80% · P56

Affected Version Matrix 1

VendorProduct Version RangeStatus
Edimax EW-7478APC 1.04 affected
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I. Basic Information for CVE-2026-19961

Vulnerability Information
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Vulnerability Title
Edimax EW-7478APC formWlSiteSurvey buffer overflow
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was detected in Edimax EW-7478APC 1.04. Affected is the function formWlSiteSurvey of the file /goform/formWlSiteSurvey. Performing a manipulation of the argument selSSID 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:C/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-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，该漏洞源于对/goform/formWlSiteSurvey文件中formWlSiteSurvey函数的参数selSSID操作不当，容易受到缓冲区溢出攻击。
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-2026-19961

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III. Intelligence Information for CVE-2026-19961

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Vendor Advisories for CVE-2026-19961 (2)

Security Blog Posts for CVE-2026-19961 (1)

News Coverage for CVE-2026-19961 (1)

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

CVE-2026-19959 9.9 CRITICAL Edimax EW-7478APC formWanTcpipSetup stack-based 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-120

V. Comments for CVE-2026-19961

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