Totolink N300RH POST Request cstecgi.cgi setWanConfig buffer overflow_CVE-2026-7749

{
    "lastseen": "",
    "description": "A security vulnerability has been detected in Totolink N300RH 3.2.4-B20220812. This affects the function setWanConfig of the file /cgi-bin/cstecgi.cgi of the component POST Request Handler. The manipulation of the argument priDns leads to buffer overflow. The attack may be initiated remotely. The exploit has been disclosed publicly and may be used.",
    "published": "2026-05-04T08:45:11.639Z",
    "modified": "2026-05-04T08:45:11.639Z",
    "type": "cve",
    "title": "Totolink N300RH POST Request cstecgi.cgi setWanConfig buffer overflow",
    "source": "VulDB",
    "references": "https://vuldb.com/vuln/360924\nhttps://vuldb.com/vuln/360924/cti\nhttps://vuldb.com/submit/807203\nhttps://lavender-bicycle-a5a.notion.site/TOTOLINK-N300RH-setWanConfig-34553a41781f80ed8500d9b8d54074f2\nhttps://www.totolink.net/",
    "id": "CVE-2026-7749",
    "bulletinFamily": "",
    "cwe": [
        "CWE-120",
        "CWE-119"
    ],
    "cvelist": null,
    "sourceData": "Totolink N300RH 3.2.4-B20220812",
    "sourceHref": "",
    "cvss": {
        "score": 8.7,
        "severity": "HIGH",
        "vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/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": "N300RH",
    "version": "3.2.4-B20220812",
    "vendor": "Totolink",
    "ai_description": "Buffer overflow vulnerability in Totolink N300RH via the setWanConfig function in the cstecgi.cgi file, allowing remote attackers to exploit the priDns argument.",
    "ai_severity": "High",
    "ai_vendor": "Totolink",
    "ai_product": "N300RH",
    "ai_version": "3.2.4-B20220812",
    "ai_score": 8.7
}