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CVE-2026-10126— Edimax BR-6478AC POST Request formQoS buffer overflow

Quick assessment

Affected
Edimax BR-6478AC
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 BR-6478AC是中国讯舟（Edimax）公司的一款双频千兆路由器。 Edimax BR-6478AC 1.23版本存在安全漏洞，该漏洞源于组件POST Request Handler中文件/goform/formQoS的函数formQoS对参数selSSID的操作导致缓冲区溢出，攻击者可远程发起攻击。

CVSS 8.8 · High EPSS 0.75% · P54

Affected Version Matrix 1

VendorProduct Version RangeStatus
Edimax BR-6478AC 1.23 affected
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I. Basic Information for CVE-2026-10126

Vulnerability Information
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Vulnerability Title
Edimax BR-6478AC POST Request formQoS buffer overflow
Source: CVE Program / CVE List V5
Vulnerability Description
A security flaw has been discovered in Edimax BR-6478AC 1.23. Affected by this issue is the function formQoS of the file /goform/formQoS of the component POST Request Handler. The manipulation of the argument selSSID results in buffer overflow. The attack can be launched remotely. The exploit has been released to the public and may be used for attacks.
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 BR-6478AC 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Edimax BR-6478AC是中国讯舟（Edimax）公司的一款双频千兆路由器。 Edimax BR-6478AC 1.23版本存在安全漏洞，该漏洞源于组件POST Request Handler中文件/goform/formQoS的函数formQoS对参数selSSID的操作导致缓冲区溢出，攻击者可远程发起攻击。
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 BR-6478AC 1.23 cpe:2.3:o:edimax:br-6478ac_firmware:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-10126

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III. Intelligence Information for CVE-2026-10126

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Security Blog Posts for CVE-2026-10126 (1)

Same Patch Batch · Edimax · 2026-05-30 · 3 CVEs total

CVE-2026-10125 8.8 HIGH Edimax BR-6478AC POST Request formPPPoESetup stack-based overflow
CVE-2026-10127 6.3 MEDIUM Edimax BR-6478AC POST Request formStaDrvSetup command injection

IV. Related Vulnerabilities

Same product: BR-6478AC
Same vendor: Edimax
Same weakness: CWE-120

V. Comments for CVE-2026-10126

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