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CVE-2026-10189— Tenda W12 httpd cgiSysTimeInfoSet stack-based overflow

Quick assessment

Affected
Tenda W12
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 W12是中国腾达（Tenda）公司的一款高性能无线接入点。 Tenda W12 3.0.0.7(4763)版本存在安全漏洞，该漏洞源于文件/bin/httpd中函数cgiSysTimeInfoSet的参数sec导致栈缓冲区溢出，可能允许远程攻击。

CVSS 8.8 · High EPSS 0.50% · P41

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
Tenda W12 3.0.0.7(4763) affected
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I. Basic Information for CVE-2026-10189

Vulnerability Information
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Vulnerability Title
Tenda W12 httpd cgiSysTimeInfoSet stack-based overflow
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability has been found in Tenda W12 3.0.0.7(4763). This vulnerability affects the function cgiSysTimeInfoSet of the file /bin/httpd. The manipulation of the argument sec leads to stack-based buffer overflow. It is possible to initiate the attack 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 W12 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Tenda W12是中国腾达（Tenda）公司的一款高性能无线接入点。 Tenda W12 3.0.0.7(4763)版本存在安全漏洞，该漏洞源于文件/bin/httpd中函数cgiSysTimeInfoSet的参数sec导致栈缓冲区溢出，可能允许远程攻击。
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 W12 3.0.0.7(4763) cpe:2.3:o:tenda:w12_firmware:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-10189

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III. Intelligence Information for CVE-2026-10189

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Other References for CVE-2026-10189 (1)

Same Patch Batch · Tenda · 2026-05-31 · 5 CVEs total

CVE-2026-10192 8.8 HIGH Tenda W12 httpd set_local_time_0 stack-based overflow
CVE-2026-10191 8.8 HIGH Tenda W12 httpd cgiWifiMacFilterSet stack-based overflow
CVE-2026-10188 8.8 HIGH Tenda W12 httpd cgistaKickOff stack-based overflow
CVE-2026-10190 6.5 MEDIUM Tenda W12 Web Management httpd cgiSysWebTimeoutSet denial of service

IV. Related Vulnerabilities

Same product: W12
Same vendor: Tenda
Same weakness: CWE-121

V. Comments for CVE-2026-10189

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