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CVE-2026-6029— Totolink A7100RU CGI cstecgi.cgi setVpnAccountCfg os command injection

Quick assessment

Affected
Totolink A7100RU
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 A7100RU是中国吉翁电子（TOTOLINK）公司的一款无线路由器。 Totolink A7100RU 7.4cu.2313_b20191024版本存在操作系统命令注入漏洞，该漏洞源于对文件/cgi-bin/cstecgi.cgi中参数User的错误操作，可能导致os命令注入。

CVSS 9.8 · Critical EPSS 3.25% · P88
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I. Basic Information for CVE-2026-6029

Vulnerability Information
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Vulnerability Title
Totolink A7100RU CGI cstecgi.cgi setVpnAccountCfg os command injection
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was detected in Totolink A7100RU 7.4cu.2313_b20191024. The affected element is the function setVpnAccountCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. The manipulation of the argument User results in os command injection. The attack may be launched remotely. The exploit is now public and may be used.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/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
Vulnerability Title
TOTOLINK A7100RU 操作系统命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
TOTOLINK A7100RU是中国吉翁电子（TOTOLINK）公司的一款无线路由器。 Totolink A7100RU 7.4cu.2313_b20191024版本存在操作系统命令注入漏洞，该漏洞源于对文件/cgi-bin/cstecgi.cgi中参数User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)

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Affected Products

Vendor Product Affected Versions CPE Subscribe
Totolink A7100RU 7.4cu.2313_b20191024 cpe:2.3:o:totolink:a7100ru_firmware:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-6029

# POC Description Source Link Shenlong Link
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Qwen3.6-35B-A3B · 7970 chars
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III. Intelligence Information for CVE-2026-6029

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Vendor Advisories for CVE-2026-6029 (1)

Proof of Concept for CVE-2026-6029 (1)

Same Patch Batch · Totolink · 2026-04-10 · 10 CVEs total

CVE-2026-6028 9.8 CRITICAL Totolink A7100RU CGI cstecgi.cgi setPptpServerCfg os command injection
CVE-2026-6027 9.8 CRITICAL Totolink A7100RU CGI cstecgi.cgi setUrlFilterRules os command injection
CVE-2026-6026 9.8 CRITICAL Totolink A7100RU CGI cstecgi.cgi setPortalConfWeChat os command injection
CVE-2026-6025 9.8 CRITICAL Totolink A7100RU CGI cstecgi.cgi setSyslogCfg os command injection
CVE-2026-5997 9.8 CRITICAL Totolink A7100RU CGI cstecgi.cgi setLoginPasswordCfg os command injection
CVE-2026-5996 9.8 CRITICAL Totolink A7100RU CGI cstecgi.cgi setAdvancedInfoShow os command injection
CVE-2026-5995 9.8 CRITICAL Totolink A7100RU CGI cstecgi.cgi setMiniuiHomeInfoShow os command injection
CVE-2026-5994 9.8 CRITICAL Totolink A7100RU CGI cstecgi.cgi setTelnetCfg os command injection
CVE-2026-5993 9.8 CRITICAL Totolink A7100RU CGI cstecgi.cgi setWiFiGuestCfg os command injection

IV. Related Vulnerabilities

Same product: A7100RU
Same vendor: Totolink
Same weakness: CWE-78

V. Comments for CVE-2026-6029

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