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CVE-2026-6122— Tenda F451 httpd L7Prot frmL7ProtForm stack-based overflow

Quick assessment

Affected
Tenda F451
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.

Tenda F451是中国腾达（Tenda）公司的一款无线路由器。 Tenda F451 1.0.0.7版本存在安全漏洞，该漏洞源于httpd组件中文件/goform/L7Prot的frmL7ProtForm函数对参数page处理不当，可能导致栈缓冲区溢出。

CVSS 8.8 · High EPSS 0.95% · P60

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-6122

Vulnerability Information
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Vulnerability Title
Tenda F451 httpd L7Prot frmL7ProtForm stack-based overflow
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability has been found in Tenda F451 1.0.0.7. Affected by this issue is the function frmL7ProtForm of the file /goform/L7Prot of the component httpd. Such manipulation of the argument page leads to stack-based buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used.
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
Tenda F451 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Tenda F451是中国腾达（Tenda）公司的一款无线路由器。 Tenda F451 1.0.0.7版本存在安全漏洞，该漏洞源于httpd组件中文件/goform/L7Prot的frmL7ProtForm函数对参数page处理不当，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
Tenda F451 1.0.0.7 cpe:2.3:o:tenda:f451_firmware:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-6122

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III. Intelligence Information for CVE-2026-6122

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Same Patch Batch · Tenda · 2026-04-12 · 10 CVEs total

CVE-2026-6137 8.8 HIGH Tenda F451 AdvSetWan fromAdvSetWan stack-based overflow
CVE-2026-6136 8.8 HIGH Tenda F451 L7Im frmL7ImForm stack-based overflow
CVE-2026-6135 8.8 HIGH Tenda F451 SetIpBind fromSetIpBind stack-based overflow
CVE-2026-6134 8.8 HIGH Tenda F451 qossetting fromqossetting stack-based overflow
CVE-2026-6133 8.8 HIGH Tenda F451 SafeUrlFilter fromSafeUrlFilter stack-based overflow
CVE-2026-6124 8.8 HIGH Tenda F451 httpd SafeMacFilter fromSafeMacFilter stack-based overflow
CVE-2026-6123 8.8 HIGH Tenda F451 httpd addressNat fromAddressNat stack-based overflow
CVE-2026-6121 8.8 HIGH Tenda F451 httpd WrlclientSet stack-based overflow
CVE-2026-6120 8.8 HIGH Tenda F451 httpd DhcpListClient fromDhcpListClient stack-based overflow

IV. Related Vulnerabilities

Same product: F451
Same vendor: Tenda
Same weakness: CWE-121

V. Comments for CVE-2026-6122

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