Totolink A7100RU CGI cstecgi.cgi setTelnetCfg os command injection_CVE-2026-5994

{
    "lastseen": "",
    "description": "A security flaw has been discovered in Totolink A7100RU 7.4cu.2313_b20191024. This issue affects the function setTelnetCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. Performing a manipulation of the argument telnet_enabled results in os command injection. The attack is possible to be carried out remotely. The exploit has been released to the public and may be used for attacks.",
    "published": "2026-04-10T00:30:13.988Z",
    "modified": "2026-04-10T17:06:56.098Z",
    "type": "cve",
    "title": "Totolink A7100RU CGI cstecgi.cgi setTelnetCfg os command injection",
    "source": "VulDB",
    "references": "https://vuldb.com/vuln/356548\nhttps://vuldb.com/vuln/356548/cti\nhttps://vuldb.com/submit/792042\nhttps://github.com/Litengzheng/vuldb_new/blob/main/A7100RU/vul_166/README.md\nhttps://www.totolink.net/",
    "id": "CVE-2026-5994",
    "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 setTelnetCfg 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
}