CVE-2025-7854— Tenda FH451 VirtualSer fromVirtualSer stack-based overflow
Quick assessment
Affected
Tenda FH451
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.
Tenda FH451是中国腾达（Tenda）公司的一款路由器。 Tenda FH451 1.0.0.9版本存在安全漏洞，该漏洞源于文件/goform/VirtualSer中fromVirtualSer函数对参数page处理不当导致栈缓冲区溢出。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2025-7854
Vulnerability Information
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Vulnerability Title
Tenda FH451 VirtualSer fromVirtualSer stack-based overflow
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability classified as critical has been found in Tenda FH451 1.0.0.9. Affected is the function fromVirtualSer of the file /goform/VirtualSer. The manipulation of the argument page leads to stack-based buffer overflow. It is possible to launch the attack 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 FH451 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Tenda FH451是中国腾达（Tenda）公司的一款路由器。 Tenda FH451 1.0.0.9版本存在安全漏洞，该漏洞源于文件/goform/VirtualSer中fromVirtualSer函数对参数page处理不当导致栈缓冲区溢出。
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
II. Public POCs for CVE-2025-7854
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
Premium
Qwen3.6-35B-A3B
· 6191 chars
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Trigger conditions & impact
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III. Intelligence Information for CVE-2025-7854
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Same Patch Batch · Tenda · 2025-07-19 · 3 CVEs total
| CVE-2025-7855 | 8.8 HIGH | Tenda FH451 qossetting fromqossetting stack-based overflow |
| CVE-2025-7853 | 8.8 HIGH | Tenda FH451 SetIpBind fromSetIpBind stack-based overflow |
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V. Comments for CVE-2025-7854
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