CVE-2026-86166— Tenda HG10 Boa Web Server formWanRedirect buffer overflow
Quick assessment
Affected
Tenda HG10
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 HG10 固件版本 300001138 中发现一个漏洞。该问题影响 Boa Web Server 组件中文件 的 函数。对参数 进行恶意操纵可能引发缓冲区溢出漏洞。攻击可远程发起，该漏洞的利用方法已公开披露，可能被攻击者利用。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-86166
Vulnerability Information
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Vulnerability Title
Tenda HG10 Boa Web Server formWanRedirect buffer overflow
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was determined in Tenda HG10 300001138. This issue affects the function formWanRedirect of the file /boaform/formWanRedirect of the component Boa Web Server. Executing a manipulation of the argument if can lead to buffer overflow. The attack may be launched remotely. The exploit has been publicly disclosed and may be utilized.
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
未进行输入大小检查的缓冲区拷贝(传统缓冲区溢出)
Source: CVE Program / CVE List V5
Affected Products
II. Public POCs for CVE-2026-86166
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Vendor Advisories for CVE-2026-86166 (1)
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🔗 Submit #895595: Tenda HG10 HG7_HG9_HG10re_300001138 Denial of Service third-party-advisory
Proof of Concept for CVE-2026-86166 (1)
Other References for CVE-2026-86166 (2)
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🔗 CVE-2026-86166 in HG10 third-party-advisory
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🔗 CVE-2026-86166 Tenda HG10 Boa Web Server formWanRedirect buffer overflow vdb-entry technical-description
Same Patch Batch · Tenda · 2026-09-06 · 5 CVEs total
| CVE-2026-86152 | 10.0 CRITICAL | Tenda CP3 Kylin AutoAddWifi.cpp ThreadProc os command injection |
| CVE-2026-86167 | 9.9 CRITICAL | Tenda HG10 Boa formgponConf os command injection |
| CVE-2026-86165 | 9.8 CRITICAL | Tenda HG10 formURL buffer overflow |
| CVE-2026-86153 | 9.1 CRITICAL | Tenda CP3 Redirect.cpp SetRedirectEnable privileges management |
IV. Related Vulnerabilities
Same product: HG10
-
CVE-2026-86167
Tenda HG10 Boa formgponConf os command injection -
CVE-2026-86165
Tenda HG10 formURL buffer overflow -
CVE-2026-85110
Tenda HG10 Boa Web Server formWlanSetup buffer overflow -
CVE-2026-85109
Tenda HG10 Boa Web Server formLogin buffer overflow -
CVE-2026-82542
Tenda HG10 Boa Web Server formIPv6Routing buffer overflow
Same vendor: Tenda
-
CVE-2026-86167
Tenda HG10 Boa formgponConf os command injection -
CVE-2026-86165
Tenda HG10 formURL buffer overflow -
CVE-2026-86153
Tenda CP3 Redirect.cpp SetRedirectEnable privileges manageme -
CVE-2026-86152
Tenda CP3 Kylin AutoAddWifi.cpp ThreadProc os command inject -
CVE-2026-86151
Tenda CP3 Network Configuration Management system.c sub_2F77
Same weakness: CWE-120
-
CVE-2026-86165
Tenda HG10 formURL buffer overflow -
CVE-2026-85110
Tenda HG10 Boa Web Server formWlanSetup buffer overflow -
CVE-2026-85109
Tenda HG10 Boa Web Server formLogin buffer overflow -
CVE-2026-85031
TOTOLINK CP450 cstecgi.cgi buffer overflow -
CVE-2026-9625
RSLinx Classic® - Multiple Vulnerabilities
V. Comments for CVE-2026-86166
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