Totolink A8000RU Web Management cstecgi.cgi setDdnsCfg os command injection_CVE-2026-9404

{
    "lastseen": "",
    "description": "A vulnerability was identified in Totolink A8000RU 7.1cu.643_b20200521. This affects the function setDdnsCfg of the file /cgi-bin/cstecgi.cgi of the component Web Management Interface. Such manipulation of the argument provider leads to os command injection. The attack may be launched remotely. The exploit is publicly available and might be used.",
    "published": "2026-05-24T23:00:24.401Z",
    "modified": "2026-05-24T23:00:24.401Z",
    "type": "cve",
    "title": "Totolink A8000RU Web Management cstecgi.cgi setDdnsCfg os command injection",
    "source": "VulDB",
    "references": "https://vuldb.com/vuln/365385\nhttps://vuldb.com/vuln/365385/cti\nhttps://vuldb.com/submit/813439\nhttps://github.com/Litengzheng/vuldb_new2/blob/main/A8000RU/vul_336/README.md\nhttps://www.totolink.net/",
    "id": "CVE-2026-9404",
    "bulletinFamily": "",
    "cwe": [
        "CWE-78",
        "CWE-77"
    ],
    "cvelist": null,
    "sourceData": "Totolink A8000RU 7.1cu.643_b20200521",
    "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": "A8000RU",
    "version": "7.1cu.643_b20200521",
    "vendor": "Totolink",
    "ai_description": "OS command injection vulnerability in Totolink A8000RU Web Management Interface",
    "ai_severity": "Critical",
    "ai_vendor": "Totolink",
    "ai_product": "A8000RU",
    "ai_version": "7.1cu.643_b20200521",
    "ai_score": 9.3
}