CVE-2025-9088— Tenda AC20 formSetVirtualSer save_virtualser_data stack-based overflow
Quick assessment
Affected
Tenda AC20
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 AC20是中国腾达（Tenda）公司的一款无线路由器。 Tenda AC20 16.03.08.12版本存在安全漏洞，该漏洞源于/goform/formSetVirtualSer文件中save_virtualser_data函数对参数list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-2025-9088
Vulnerability Information
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Vulnerability Title
Tenda AC20 formSetVirtualSer save_virtualser_data stack-based overflow
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was found in Tenda AC20 16.03.08.12. This vulnerability affects the function save_virtualser_data of the file /goform/formSetVirtualSer. The manipulation of the argument list leads to stack-based buffer overflow. The attack can be initiated 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 AC20 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Tenda AC20是中国腾达（Tenda）公司的一款无线路由器。 Tenda AC20 16.03.08.12版本存在安全漏洞，该漏洞源于/goform/formSetVirtualSer文件中save_virtualser_data函数对参数list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-2025-9088
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Qwen3.6-35B-A3B
· 8484 chars
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III. Intelligence Information for CVE-2025-9088
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Same Patch Batch · Tenda · 2025-08-16 · 3 CVEs total
| CVE-2025-9089 | 8.8 HIGH | Tenda AC20 SetIpMacBind sub_48E628 stack-based overflow |
| CVE-2025-9087 | 8.8 HIGH | Tenda AC20 SetNetControlList Endpoint set_qosMib_list stack-based overflow |
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V. Comments for CVE-2025-9088
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