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CVE-2025-7206— D-Link DIR-825 httpd switch_language.cgi sub_410DDC stack-based overflow

Quick assessment

Affected
D-Link DIR-825
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.

D-Link DIR-825是中国友讯（D-Link）公司的一款路由器。 D-Link DIR-825 2.10版本存在安全漏洞，该漏洞源于httpd组件中文件switch_language.cgi的函数sub_410DDC对参数Language的错误操作导致栈缓冲区溢出。

CVSS 9.8 · Critical EPSS 18.47% · P97

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2025-7206

Vulnerability Information
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Vulnerability Title
D-Link DIR-825 httpd switch_language.cgi sub_410DDC stack-based overflow
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability, which was classified as critical, has been found in D-Link DIR-825 2.10. This issue affects the function sub_410DDC of the file switch_language.cgi of the component httpd. The manipulation of the argument Language leads to stack-based buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. This vulnerability only affects products that are no longer supported by the maintainer.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/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
D-Link DIR-825 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
D-Link DIR-825是中国友讯（D-Link）公司的一款路由器。 D-Link DIR-825 2.10版本存在安全漏洞，该漏洞源于httpd组件中文件switch_language.cgi的函数sub_410DDC对参数Language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)

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Affected Products

Vendor Product Affected Versions CPE Subscribe
D-Link DIR-825 2.10 -

II. Public POCs for CVE-2025-7206

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Qwen3.6-35B-A3B · 10303 chars
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III. Intelligence Information for CVE-2025-7206

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Vendor Pages for CVE-2025-7206 (1)

Other References for CVE-2025-7206 (1)

Same Patch Batch · D-Link · 2025-07-08 · 3 CVEs total

CVE-2025-7194 8.8 HIGH D-Link DI-500WF jhttpd ip_position.asp sprintf stack-based overflow
CVE-2025-7192 6.3 MEDIUM D-Link DIR-645 ssdpcgi cgibin ssdpcgi_main command injection

IV. Related Vulnerabilities

Same product: DIR-825
Same vendor: D-Link
Same weakness: CWE-121

V. Comments for CVE-2025-7206

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