{
    "id": "CVE-2009-4491",
    "published": "2010-01-13 20:30:00",
    "last_modified": "2026-06-16 23:13:46",
    "cvss_score": "9.8",
    "cvss_severity": "CRITICAL",
    "cvss_version": "3.1",
    "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
    "cwe": "CWE-20",
    "description": "thttpd 2.25b0 writes data to a log file without sanitizing non-printable characters, which might allow remote attackers to modify a window's title, or possibly execute arbitrary commands or overwrite files, via an HTTP request containing an escape sequence for a terminal emulator.",
    "epss_score": "0.13718",
    "epss_percentile": "0.96377",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 1,
    "updated_at": "2026-09-27 18:17:09",
    "priority": {
        "rank": 2,
        "label": "Patch early",
        "why": "A public exploit exists."
    },
    "products": [
        {
            "vendor": "acme",
            "product": "thttpd"
        }
    ],
    "kev_detail": null,
    "exploits": [
        {
            "source": "exploit-db",
            "ref_id": "33499",
            "title": "thttpd 2.24 - HTTP Request Escape Sequence Terminal Command Injection",
            "date": "2010-01-11",
            "url": "https://www.exploit-db.com/exploits/33499"
        }
    ],
    "refs_list": [
        "http://packetstormsecurity.com/files/175949/m-privacy-TightGate-Pro-Code-Execution-Insecure-Permissions.html",
        "http://seclists.org/fulldisclosure/2023/Nov/13",
        "http://www.securityfocus.com/archive/1/508830/100/0/threaded",
        "http://www.ush.it/team/ush/hack_httpd_escape/adv.txt",
        "http://packetstormsecurity.com/files/175949/m-privacy-TightGate-Pro-Code-Execution-Insecure-Permissions.html",
        "http://seclists.org/fulldisclosure/2023/Nov/13",
        "http://www.securityfocus.com/archive/1/508830/100/0/threaded",
        "http://www.ush.it/team/ush/hack_httpd_escape/adv.txt"
    ]
}