Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1336 CNY

100%
Buy Us a Coffee

CVE-2026-2186— Tenda RX3 SetIpMacBind fromSetIpMacBind stack-based overflow

Quick assessment

Affected
Tenda RX3
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 RX3是中国腾达（Tenda）公司的一款双频 WiFi 6 家用无线路由器。用于家庭网络覆盖，支持高速无线连接。 Tenda RX3 16.03.13.11版本存在安全漏洞，该漏洞源于对文件/goform/SetIpMacBind中函数fromSetIpMacBind的参数列表操作不当，可能导致栈缓冲区溢出。

CVSS 8.8 · High EPSS 0.85% · P56

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-2186

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Tenda RX3 SetIpMacBind fromSetIpMacBind stack-based overflow
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability has been found in Tenda RX3 16.03.13.11. Impacted is the function fromSetIpMacBind of the file /goform/SetIpMacBind. Such manipulation of the argument list leads to stack-based buffer overflow. The attack may be performed from remote. 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 RX3 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Tenda RX3是中国腾达（Tenda）公司的一款双频 WiFi 6 家用无线路由器。用于家庭网络覆盖，支持高速无线连接。 Tenda RX3 16.03.13.11版本存在安全漏洞，该漏洞源于对文件/goform/SetIpMacBind中函数fromSetIpMacBind的参数列表操作不当，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 RX3 16.03.13.11 cpe:2.3:o:tenda:rx3_firmware:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-2186

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-2186

请登录查看更多情报信息。

Proof of Concept for CVE-2026-2186 (1)

Same Patch Batch · Tenda · 2026-02-08 · 13 CVEs total

CVE-2026-2187 8.8 HIGH Tenda RX3 formSetQosBand set_qosMib_list stack-based overflow
CVE-2026-2185 8.8 HIGH Tenda RX3 MAC Filtering Configuration Endpoint setBlackRule set_device_name stack-based ov
CVE-2026-2181 8.8 HIGH Tenda RX3 openSchedWifi stack-based overflow
CVE-2026-2180 8.8 HIGH Tenda RX3 fast_setting_wifi_set stack-based overflow
CVE-2026-2140 8.8 HIGH Tenda TX9 setMacFilterCfg sub_4223E0 buffer overflow
CVE-2026-2139 8.8 HIGH Tenda TX9 fast_setting_wifi_set sub_432580 buffer overflow
CVE-2026-2138 8.8 HIGH Tenda TX9 SetStaticRouteCfg sub_42D03C buffer overflow
CVE-2026-2137 8.8 HIGH Tenda TX3 SetIpMacBind buffer overflow
CVE-2026-2192 7.2 HIGH Tenda AC9 formGetRebootTimer stack-based overflow
CVE-2026-2191 7.2 HIGH Tenda AC9 formGetDdosDefenceList stack-based overflow
CVE-2026-2148 5.3 MEDIUM Tenda AC21 Web Management DownloadFlash information disclosure
CVE-2026-2147 5.3 MEDIUM Tenda AC21 Web Management DownloadLog information disclosure

IV. Related Vulnerabilities

Same product: RX3
Same vendor: Tenda
Same weakness: CWE-121

V. Comments for CVE-2026-2186

No comments yet

Leave a comment