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CVE-2026-108804— TRENDnet TEW-751DR/TEW-752DRU/TEW733GR Web Management Backend pigwidgeon.cgi fwrite os command injection

Quick assessment

Affected
TRENDnet TEW-751DR
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 TRENDnet TEW-751DR、TEW-752DRU 和 TEW733GR（固件版本 1.03B01/1.03B03）中检测到一个漏洞。受影响的是 Web 管理后端组件中 pigwidgeon.cgi 文件的 fwrite 函数。对参数 service 的操纵会导致操作系统命令注入。攻击者可以远程发起攻击。目前该漏洞利用代码已公开，可能被恶意利用。 厂商确认：“由于该路由器已于 2011 年停产（EOL），我们无法验证此类漏洞是否真实存在。我们将通知客户该产品可能存在潜在漏洞。” 该漏洞仅影响已停止维护、

CVSS 10.0 · Critical EPSS 2.39% · P84

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 6

VendorProduct Version RangeStatus
TRENDnet TEW-751DR 1.03B01 affected
1.03B03 affected
TRENDnet TEW-752DRU 1.03B01 affected
1.03B03 affected
TRENDnet TEW733GR 1.03B01 affected
1.03B03 affected
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I. Basic Information for CVE-2026-108804

Vulnerability Information
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Vulnerability Title
TRENDnet TEW-751DR/TEW-752DRU/TEW733GR Web Management Backend pigwidgeon.cgi fwrite os command injection
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was detected in TRENDnet TEW-751DR, TEW-752DRU and TEW733GR 1.03B01/1.03B03. Affected is the function fwrite of the file pigwidgeon.cgi of the component Web Management Backend. The manipulation of the argument service results in os command injection. It is possible to launch the attack remotely. The exploit is now public and may be used. The vendor confirms: "As this router was EOL'd in 2011, we have no way of testing if such vulnerability exists. We will notify our customers of a potential vulnerability on this product." 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:N/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
TRENDnet TEW-751DR 1.03B01 cpe:2.3:a:trendnet:tew-751dr:*:*:*:*:*:*:*:*
TRENDnet TEW-752DRU 1.03B01 cpe:2.3:a:trendnet:tew-752dru:*:*:*:*:*:*:*:*
TRENDnet TEW733GR 1.03B01 cpe:2.3:a:trendnet:tew733gr:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-108804

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III. Intelligence Information for CVE-2026-108804

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Proof of Concept for CVE-2026-108804 (2)

IV. Related Vulnerabilities

Same vendor: TRENDnet
Same weakness: CWE-78

V. Comments for CVE-2026-108804

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