Buffer Overflow in Totolink EX1200L router_CVE-2026-44089

{
    "lastseen": "",
    "description": "Totolink\u00a0EX1200L router is vulnerable to Buffer Overflow in the login functionality in\u00a0cgi-bin/cstecgi.cgi endpoint.\u00a0This vulnerability could be exploited to cause the program to crash and to execute code remotely. This allows the attacker to perform actions as root including reading and editing data, as well as bricking the router.\n\nBecause vendor contact attempts were unsuccessful, the vulnerability has only been confirmed in version 9.3.5u.6146_B20201023 but may also affect other versions.",
    "published": "2026-06-23T12:08:09.508Z",
    "modified": "2026-06-23T12:08:09.508Z",
    "type": "cve",
    "title": "Buffer Overflow in Totolink EX1200L router",
    "source": "CERT-PL",
    "references": "https://cert.pl/en/posts/2026/06/CVE-2026-44089\nhttps://www.totolink.net/home/menu/detail/menu_listtpl/download/id/217/ids/36.html",
    "id": "CVE-2026-44089",
    "bulletinFamily": "",
    "cwe": [
        "CWE-121"
    ],
    "cvelist": null,
    "sourceData": "Totolink EX1200L 9.3.5u.6146_B20201023",
    "sourceHref": "",
    "cvss": {
        "score": 9.4,
        "severity": "CRITICAL",
        "vector": "CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H",
        "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": "EX1200L",
    "version": "9.3.5u.6146_B20201023",
    "vendor": "Totolink",
    "ai_description": "Buffer Overflow vulnerability in Totolink EX1200L router's login functionality, allowing remote code execution and root access.",
    "ai_severity": "Critical",
    "ai_vendor": "Totolink",
    "ai_product": "EX1200L",
    "ai_version": "9.3.5u.6146_B20201023",
    "ai_score": 9.4
}