Totolink NR1800X lighttpd find_host_ip stack-based overflow_CVE-2026-7546

{
    "lastseen": "",
    "description": "A security vulnerability has been detected in Totolink NR1800X 9.1.0u.6279_B20210910. The impacted element is the function find_host_ip of the component lighttpd. Such manipulation of the argument Host leads to stack-based buffer overflow. The attack can be executed remotely. The exploit has been disclosed publicly and may be used.",
    "published": "2026-05-01T02:15:12.350Z",
    "modified": "2026-05-01T02:15:12.350Z",
    "type": "cve",
    "title": "Totolink NR1800X lighttpd find_host_ip stack-based overflow",
    "source": "VulDB",
    "references": "https://vuldb.com/vuln/360357\nhttps://vuldb.com/vuln/360357/cti\nhttps://vuldb.com/submit/804404\nhttps://github.com/newym/cve/blob/main/totolinknr1800x.md\nhttps://www.totolink.net/",
    "id": "CVE-2026-7546",
    "bulletinFamily": "",
    "cwe": [
        "CWE-121",
        "CWE-119"
    ],
    "cvelist": null,
    "sourceData": "Totolink NR1800X 9.1.0u.6279_B20210910",
    "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": "NR1800X",
    "version": "9.1.0u.6279_B20210910",
    "vendor": "Totolink",
    "ai_description": "Stack-based buffer overflow in the find_host_ip function of the lighttpd component, allowing remote exploitation",
    "ai_severity": "Critical",
    "ai_vendor": "Totolink",
    "ai_product": "NR1800X",
    "ai_version": "9.1.0u.6279_B20210910",
    "ai_score": 9.3
}