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CVE-2026-7151— Tenda HG3 formIPv6Routing formUploadConfig stack-based overflow

Quick assessment

Affected
Tenda HG3
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 HG3是中国腾达（Tenda）公司的一款面向家庭宽带接入的光纤网络终端无线路由设备。 Tenda HG3 2.0版本存在缓冲区错误漏洞，该漏洞源于文件/boaform/formIPv6Routing中函数formUploadConfig对参数destNet操作不当，可能导致栈缓冲区溢出。

CVSS 8.8 · High EPSS 1.01% · P62

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
Tenda HG3 2.0 affected
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I. Basic Information for CVE-2026-7151

Vulnerability Information
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Vulnerability Title
Tenda HG3 formIPv6Routing formUploadConfig stack-based overflow
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was determined in Tenda HG3 2.0. Impacted is the function formUploadConfig of the file /boaform/formIPv6Routing. This manipulation of the argument destNet causes stack-based buffer overflow. It is possible to initiate the attack 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
栈缓冲区溢出
Source: CVE Program / CVE List V5
Vulnerability Title
Tenda HG3 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Tenda HG3是中国腾达（Tenda）公司的一款面向家庭宽带接入的光纤网络终端无线路由设备。 Tenda HG3 2.0版本存在缓冲区错误漏洞，该漏洞源于文件/boaform/formIPv6Routing中函数formUploadConfig对参数destNet操作不当，可能导致栈缓冲区溢出。
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)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Tenda HG3 2.0 -

II. Public POCs for CVE-2026-7151

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III. Intelligence Information for CVE-2026-7151

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Vendor Advisories for CVE-2026-7151 (1)

Security Blog Posts for CVE-2026-7151 (1)

Same Patch Batch · Tenda · 2026-04-27 · 15 CVEs total

CVE-2026-7078 8.8 HIGH Tenda F456 httpd SetIpBind fromSetIpBind buffer overflow
CVE-2026-7079 8.8 HIGH Tenda F456 httpd AdvSetWan fromAdvSetWan buffer overflow
CVE-2026-7080 8.8 HIGH Tenda F456 httpd PPTPUserSetting fromPPTPUserSetting buffer overflow
CVE-2026-7081 8.8 HIGH Tenda F456 httpd GstDhcpSetSer fromGstDhcpSetSer buffer overflow
CVE-2026-7082 8.8 HIGH Tenda F456 httpd WrlExtraSet formWrlExtraSet buffer overflow
CVE-2026-7096 8.8 HIGH Tenda HG3 formgponConf os command injection
CVE-2026-7097 8.8 HIGH Tenda F456 httpd webExcptypemanFilter fromwebExcptypemanFilter buffer overflow
CVE-2026-7098 8.8 HIGH Tenda F456 httpd DhcpListClient fromDhcpListClient buffer overflow
CVE-2026-7099 8.8 HIGH Tenda F456 httpd QuickIndex formQuickIndex buffer overflow
CVE-2026-7100 8.8 HIGH Tenda F456 httpd Natlimit fromNatlimitof buffer overflow
CVE-2026-7101 8.8 HIGH Tenda F456 httpd WrlclientSet fromWrlclientSet buffer overflow
CVE-2026-7119 8.8 HIGH Tenda HG3 formCountrystr os command injection
CVE-2026-7160 8.8 HIGH Tenda HG3 formTracert command injection
CVE-2026-7102 6.3 MEDIUM Tenda F456 httpd WriteFacMac FromWriteFacMac command injection

IV. Related Vulnerabilities

Same product: HG3
Same vendor: Tenda
Same weakness: CWE-121

V. Comments for CVE-2026-7151

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