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CVE-2026-4567— Tenda A15 UploadCfg stack-based overflow

Quick assessment

Affected
Tenda A15
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 A15是中国腾达（Tenda）公司的一款 WiFi 扩展器。 Tenda A15 15.13.07.13版本存在安全漏洞，该漏洞源于对文件/cgi-bin/UploadCfg中UploadCfg函数的File参数操作不当，可能导致基于栈的缓冲区溢出。

CVSS 9.8 · Critical EPSS 1.29% · P69
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I. Basic Information for CVE-2026-4567

Vulnerability Information
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Vulnerability Title
Tenda A15 UploadCfg stack-based overflow
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability has been found in Tenda A15 15.13.07.13. The impacted element is the function UploadCfg of the file /cgi-bin/UploadCfg. The manipulation of the argument File leads to stack-based buffer overflow. The attack may 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: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
Tenda A15 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Tenda A15是中国腾达（Tenda）公司的一款 WiFi 扩展器。 Tenda A15 15.13.07.13版本存在安全漏洞，该漏洞源于对文件/cgi-bin/UploadCfg中UploadCfg函数的File参数操作不当，可能导致基于栈的缓冲区溢出。
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
Tenda A15 15.13.07.13 cpe:2.3:o:tenda:a15_firmware:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-4567

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 12340 chars
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III. Intelligence Information for CVE-2026-4567

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Vendor Advisories for CVE-2026-4567 (2)

News Coverage for CVE-2026-4567 (1)

Other References for CVE-2026-4567 (1)

IV. Related Vulnerabilities

Same product: A15
Same vendor: Tenda
Same weakness: CWE-121

V. Comments for CVE-2026-4567

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