CVE-2025-5609— Tenda AC18 AdvSetLanip fromadvsetlanip buffer overflow
Quick assessment
Affected
Tenda AC18
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 AC18是中国腾达（Tenda）公司的一款路由器。 Tenda AC18 15.03.05.05版本存在安全漏洞，该漏洞源于对文件/goform/AdvSetLanip中参数lanMask的错误操作导致缓冲区溢出。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2025-5609
Vulnerability Information
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Vulnerability Title
Tenda AC18 AdvSetLanip fromadvsetlanip buffer overflow
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability classified as critical was found in Tenda AC18 15.03.05.05. Affected by this vulnerability is the function fromadvsetlanip of the file /goform/AdvSetLanip. The manipulation of the argument lanMask leads to buffer overflow. The attack can 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
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
Tenda AC18 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Tenda AC18是中国腾达（Tenda）公司的一款路由器。 Tenda AC18 15.03.05.05版本存在安全漏洞，该漏洞源于对文件/goform/AdvSetLanip中参数lanMask的错误操作导致缓冲区溢出。
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-2025-5609
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Same Patch Batch · Tenda · 2025-06-04 · 5 CVEs total
| CVE-2025-5619 | 8.8 HIGH | Tenda CH22 addUserName formaddUserName stack-based overflow |
| CVE-2025-5608 | 8.8 HIGH | Tenda AC18 SetSysAutoRebbotCfg formsetreboottimer buffer overflow |
| CVE-2025-5607 | 8.8 HIGH | Tenda AC18 setPptpUserList formSetPPTPUserList buffer overflow |
| CVE-2025-5606 | 6.3 MEDIUM | Tenda AC18 SetIPTVCfg formSetIptv command injection |
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V. Comments for CVE-2025-5609
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