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CVE-2026-3696— Totolink N300RH CGI cstecgi.cgi setWiFiWpsConfig os command injection

Quick assessment

Affected
Totolink N300RH
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.

TOTOLINK N300RH是中国吉翁电子（TOTOLINK）公司的一款长距离无线路由器。 Totolink N300RH 6..1c.1353_B20190305版本存在操作系统命令注入漏洞，该漏洞源于对组件CGI Handler的文件/cgi-bin/cstecgi.cgi中函数setWiFiWpsConfig的错误操作，可能导致os命令注入。

CVSS 7.3 · High EPSS 2.91% · P87
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I. Basic Information for CVE-2026-3696

Vulnerability Information
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Vulnerability Title
Totolink N300RH CGI cstecgi.cgi setWiFiWpsConfig os command injection
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was found in Totolink N300RH 6..1c.1353_B20190305. The affected element is the function setWiFiWpsConfig of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. Performing a manipulation results in os command injection. The attack can be initiated remotely. The exploit has been made public and could be used.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
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
Vulnerability Title
TOTOLINK N300RH 操作系统命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
TOTOLINK N300RH是中国吉翁电子（TOTOLINK）公司的一款长距离无线路由器。 Totolink N300RH 6..1c.1353_B20190305版本存在操作系统命令注入漏洞，该漏洞源于对组件CGI Handler的文件/cgi-bin/cstecgi.cgi中函数setWiFiWpsConfig的错误操作，可能导致os命令注入。
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
Totolink N300RH 6..1c.1353_B20190305 cpe:2.3:o:totolink:n300rh_firmware:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-3696

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 9292 chars
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In-depth vulnerability mechanism
Trigger conditions & impact
Full executable POC code
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III. Intelligence Information for CVE-2026-3696

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Vendor Advisories for CVE-2026-3696 (2)

Other References for CVE-2026-3696 (1)

IV. Related Vulnerabilities

Same product: N300RH
Same vendor: Totolink
Same weakness: CWE-78

V. Comments for CVE-2026-3696

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