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CVE-2025-7586— Tenda AC500 setWtpData formSetAPCfg stack-based overflow

Quick assessment

Affected
Tenda AC500
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 AC500是中国腾达（Tenda）公司的一个千兆端口访问控制器。 Tenda AC500 2.0.1.9(1307)版本存在安全漏洞，该漏洞源于文件/goform/setWtpData中参数radio_2g_1的错误操作导致栈缓冲区溢出。

CVSS 8.8 · High EPSS 1.05% · P63

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2025-7586

Vulnerability Information
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Vulnerability Title
Tenda AC500 setWtpData formSetAPCfg stack-based overflow
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was found in Tenda AC500 2.0.1.9(1307). It has been declared as critical. Affected by this vulnerability is the function formSetAPCfg of the file /goform/setWtpData. The manipulation of the argument radio_2g_1 leads to stack-based 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
栈缓冲区溢出
Source: CVE Program / CVE List V5
Vulnerability Title
Tenda AC500 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Tenda AC500是中国腾达（Tenda）公司的一个千兆端口访问控制器。 Tenda AC500 2.0.1.9(1307)版本存在安全漏洞，该漏洞源于文件/goform/setWtpData中参数radio_2g_1的错误操作导致栈缓冲区溢出。
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 AC500 2.0.1.9(1307) -

II. Public POCs for CVE-2025-7586

# POC Description Source Link Shenlong Link
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Qwen3.6-35B-A3B · 6164 chars
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III. Intelligence Information for CVE-2025-7586

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Same Patch Batch · Tenda · 2025-07-14 · 4 CVEs total

CVE-2025-7598 8.8 HIGH Tenda AX1803 setWifiFilterCfg formSetWifiMacFilterCfg stack-based overflow
CVE-2025-7597 8.8 HIGH Tenda AX1803 setMacFilterCfg formSetMacFilterCfg stack-based overflow
CVE-2025-7596 8.8 HIGH Tenda FH1205 WifiExtraSet formWifiExtraSet stack-based overflow

IV. Related Vulnerabilities

Same product: AC500
Same vendor: Tenda
Same weakness: CWE-121

V. Comments for CVE-2025-7586

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