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CVE-2026-5978— Totolink A7100RU CGI cstecgi.cgi setWiFiAclRules os command injection

CVSS 9.8 · Critical EPSS 1.25% · P79
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I. Basic Information for CVE-2026-5978

Vulnerability Information
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Vulnerability Title
Totolink A7100RU CGI cstecgi.cgi setWiFiAclRules os command injection
Source: NVD (National Vulnerability Database)
Vulnerability Description
A security vulnerability has been detected in Totolink A7100RU 7.4cu.2313_b20191024. Affected is the function setWiFiAclRules of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. The manipulation of the argument mode leads to os command injection. The attack can be initiated remotely. The exploit has been disclosed publicly and may be used.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
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: NVD (National Vulnerability Database)
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CGI Handler组件中/cgi-bin/cstecgi.cgi文件setWiFiAclRules函数参数mode的操作，可能导致os命令注入攻击。
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

VendorProductAffected VersionsCPESubscribe
TotolinkA7100RU 7.4cu.2313_b20191024 cpe:2.3:o:totolink:a7100ru_firmware:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-5978

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Qwen3.6-35B-A3B · 9216 chars
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III. Intelligence Information for CVE-2026-5978

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Same Patch Batch · Totolink · 2026-04-09 · 9 CVEs total

CVE-2026-59779.8 CRITICALTotolink A7100RU CGI cstecgi.cgi setWiFiBasicCfg os command injection
CVE-2026-59769.8 CRITICALTotolink A7100RU CGI cstecgi.cgi setStorageCfg os command injection
CVE-2026-59759.8 CRITICALTotolink A7100RU CGI cstecgi.cgi setDmzCfg os command injection
CVE-2026-58549.8 CRITICALTotolink A7100RU CGI cstecgi.cgi setWiFiEasyCfg os command injection
CVE-2026-58539.8 CRITICALTotolink A7100RU CGI cstecgi.cgi setIpv6LanCfg os command injection
CVE-2026-58529.8 CRITICALTotolink A7100RU CGI cstecgi.cgi setIptvCfg os command injection
CVE-2026-58519.8 CRITICALTotolink A7100RU CGI cstecgi.cgi setUPnPCfg os command injection
CVE-2026-58509.8 CRITICALTotolink A7100RU CGI cstecgi.cgi setVpnPassCfg os command injection

IV. Related Vulnerabilities

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

V. Comments for CVE-2026-5978

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