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CVE-2026-104611— Tenda AC9 POST Request fast_setting_internet_set stack-based overflow

Quick assessment

Affected
Tenda AC9
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.

在 Tenda AC9 15.03.02.13 版本中检测到一项漏洞。受影响的是 POST 请求处理器组件中 文件的某个未知函数。通过操纵参数 ，可导致基于栈的缓冲区溢出。该漏洞可被远程利用。目前相关利用代码已公开，攻击者可能加以使用。

CVSS 9.1 · Critical EPSS 0.49% · P40

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
Tenda AC9 15.03.02.13 affected
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I. Basic Information for CVE-2026-104611

Vulnerability Information
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Vulnerability Title
Tenda AC9 POST Request fast_setting_internet_set stack-based overflow
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was detected in Tenda AC9 15.03.02.13. Affected is an unknown function of the file /goform/fast_setting_internet_set of the component POST Request Handler. Performing a manipulation of the argument netWanType results in stack-based buffer overflow. The attack is possible to be carried out remotely. The exploit is now public and may be used.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/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

Affected Products

Vendor Product Affected Versions CPE Subscribe
Tenda AC9 15.03.02.13 cpe:2.3:o:tenda:ac9_firmware:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-104611

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-104611

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Other References for CVE-2026-104611 (1)

IV. Related Vulnerabilities

Same product: AC9
Same vendor: Tenda
Same weakness: CWE-121

V. Comments for CVE-2026-104611

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