Totolink A7100RU CGI cstecgi.cgi setWiFiGuestCfg os command injection_CVE-2026-5993

{
    "lastseen": "",
    "description": "A vulnerability was identified in Totolink A7100RU 7.4cu.2313_b20191024. This vulnerability affects the function setWiFiGuestCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. Such manipulation of the argument wifiOff leads to os command injection. The attack can be executed remotely. The exploit is publicly available and might be used.",
    "published": "2026-04-10T00:15:14.223Z",
    "modified": "2026-04-10T00:15:14.223Z",
    "type": "cve",
    "title": "Totolink A7100RU CGI cstecgi.cgi setWiFiGuestCfg os command injection",
    "source": "VulDB",
    "references": "https://vuldb.com/vuln/356547\nhttps://vuldb.com/vuln/356547/cti\nhttps://vuldb.com/submit/792041\nhttps://github.com/Litengzheng/vuldb_new/blob/main/A7100RU/vul_165/README.md\nhttps://www.totolink.net/",
    "id": "CVE-2026-5993",
    "bulletinFamily": "",
    "cwe": [
        "CWE-78",
        "CWE-77"
    ],
    "cvelist": null,
    "sourceData": "Totolink A7100RU 7.4cu.2313_b20191024",
    "sourceHref": "",
    "cvss": {
        "score": 9.3,
        "severity": "CRITICAL",
        "vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P",
        "version": "4.0"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
            "attackVector": "",
            "attackComplexity": "",
            "privilegesRequired": "",
            "userInteraction": "",
            "scope": "",
            "confidentialityImpact": "",
            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "A7100RU",
    "version": "7.4cu.2313_b20191024",
    "vendor": "Totolink",
    "ai_description": "OS command injection vulnerability in Totolink A7100RU via the setWiFiGuestCfg function in the /cgi-bin/cstecgi.cgi file",
    "ai_severity": "Critical",
    "ai_vendor": "Totolink",
    "ai_product": "A7100RU",
    "ai_version": "7.4cu.2313_b20191024",
    "ai_score": 9.3
}