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CVE-2026-15480— Trendnet TEW-635BRM Web Service rc start_httpd stack-based overflow

Quick assessment

Affected
Trendnet TEW-635BRM
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.

TRENDnet TEW-635BRM是美国TRENDnet公司的一款无线路由器。 TRENDnet TEW-635BRM 1.00.03及之前版本存在缓冲区错误漏洞，该漏洞源于Web Service组件中文件/sbin/rc的函数start_httpd对参数device_name操作不当，导致栈缓冲区溢出。

CVSS 8.8 · High EPSS 0.79% · P55

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
Trendnet TEW-635BRM 1.00.03 affected
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I. Basic Information for CVE-2026-15480

Vulnerability Information
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Vulnerability Title
Trendnet TEW-635BRM Web Service rc start_httpd stack-based overflow
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was identified in Trendnet TEW-635BRM up to 1.00.03. This affects the function start_httpd of the file /sbin/rc of the component Web Service. Such manipulation of the argument device_name leads to stack-based buffer overflow. The attack can be executed remotely. The exploit is publicly available and might be used. The vendor explains: "We are unable to confirm if the vulnerability exists. This item has been EOL since 2011. We will make an official announcement of possible vulnerabilities, and recommend users to switch devices." This vulnerability only affects products that are no longer supported by the maintainer.
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
TRENDnet TEW-635BRM 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
TRENDnet TEW-635BRM是美国TRENDnet公司的一款无线路由器。 TRENDnet TEW-635BRM 1.00.03及之前版本存在缓冲区错误漏洞，该漏洞源于Web Service组件中文件/sbin/rc的函数start_httpd对参数device_name操作不当，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
Trendnet TEW-635BRM 1.00.03 cpe:2.3:a:trendnet:tew-635brm:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-15480

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 7567 chars
Pro+ exclusive includes:
Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
Full executable POC code
Exploit chain & mitigation
POC zip download
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III. Intelligence Information for CVE-2026-15480

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Proof of Concept for CVE-2026-15480 (1)

Same Patch Batch · Trendnet · 2026-07-12 · 7 CVEs total

CVE-2026-15484 8.8 HIGH TRENDnet TEW-821DAP ssi tools_nslookup sub_41EC14 buffer overflow
CVE-2026-15483 8.8 HIGH TRENDnet TEW-821DAP ssi tools_nslookup sub_41EC14 buffer overflow
CVE-2026-15481 8.8 HIGH Trendnet TEW-635BRM IPoA WAN Connection Setup rc ipoa_test command injection
CVE-2026-15487 6.3 MEDIUM TRENDnet TEW-821DAP Firmware Update system_ntp sub_41FBD0 os command injection
CVE-2026-15486 6.3 MEDIUM TRENDnet TEW-821DAP Firmware Update tools_ddns sub_42026C os command injection
CVE-2026-15485 6.3 MEDIUM TRENDnet TEW-821DAP DNS Lookup tools_nslookup sub_43F2C4 os command injection

IV. Related Vulnerabilities

Same product: TEW-635BRM
Same vendor: Trendnet
Same weakness: CWE-121

V. Comments for CVE-2026-15480

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