{
    "id": "CVE-2011-1137",
    "published": "2011-03-11 17:55:03",
    "last_modified": "2026-06-16 23:28:47",
    "cvss_score": "5.0",
    "cvss_severity": "MEDIUM",
    "cvss_version": "2.0",
    "cvss_vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
    "cwe": "CWE-189",
    "description": "Integer overflow in the mod_sftp (aka SFTP) module in ProFTPD 1.3.3d and earlier allows remote attackers to cause a denial of service (memory consumption leading to OOM kill) via a malformed SSH message.",
    "epss_score": "0.28068",
    "epss_percentile": "0.98048",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 1,
    "updated_at": "2026-09-27 18:17:10",
    "priority": {
        "rank": 2,
        "label": "Patch early",
        "why": "A public exploit exists."
    },
    "products": [
        {
            "vendor": "proftpd",
            "product": "proftpd"
        }
    ],
    "kev_detail": null,
    "exploits": [
        {
            "source": "exploit-db",
            "ref_id": "16129",
            "title": "ProFTPd - 'mod_sftp' Integer Overflow Denial of Service (PoC)",
            "date": "2011-02-07",
            "url": "https://www.exploit-db.com/exploits/16129"
        }
    ],
    "refs_list": [
        "http://bugs.proftpd.org/show_bug.cgi?id=3586",
        "http://bugs.proftpd.org/show_bug.cgi?id=3587",
        "http://lists.fedoraproject.org/pipermail/package-announce/2011-April/058344.html",
        "http://lists.fedoraproject.org/pipermail/package-announce/2011-April/058356.html",
        "http://proftp.cvs.sourceforge.net/viewvc/proftp/proftpd/contrib/mod_sftp/mod_sftp.c?r1=1.29.2.1&r2=1.29.2.2",
        "http://proftp.cvs.sourceforge.net/viewvc/proftp/proftpd/contrib/mod_sftp/packet.c?r1=1.14.2.2&r2=1.14.2.3",
        "http://proftp.cvs.sourceforge.net/viewvc/proftp/proftpd/contrib/mod_sftp/packet.h?r1=1.3&r2=1.3.2.1",
        "http://secunia.com/advisories/43234",
        "http://secunia.com/advisories/43635",
        "http://secunia.com/advisories/43978",
        "http://slackware.com/security/viewer.php?l=slackware-security&y=2011&m=slackware-security.485806",
        "http://www.debian.org/security/2011/dsa-2185",
        "http://www.exploit-db.com/exploits/16129/",
        "http://www.securityfocus.com/bid/46183",
        "http://www.vupen.com/english/advisories/2011/0617",
        "http://www.vupen.com/english/advisories/2011/0857",
        "https://bugzilla.redhat.com/show_bug.cgi?id=681718",
        "http://bugs.proftpd.org/show_bug.cgi?id=3586",
        "http://bugs.proftpd.org/show_bug.cgi?id=3587",
        "http://lists.fedoraproject.org/pipermail/package-announce/2011-April/058344.html",
        "http://lists.fedoraproject.org/pipermail/package-announce/2011-April/058356.html",
        "http://proftp.cvs.sourceforge.net/viewvc/proftp/proftpd/contrib/mod_sftp/mod_sftp.c?r1=1.29.2.1&r2=1.29.2.2",
        "http://proftp.cvs.sourceforge.net/viewvc/proftp/proftpd/contrib/mod_sftp/packet.c?r1=1.14.2.2&r2=1.14.2.3",
        "http://proftp.cvs.sourceforge.net/viewvc/proftp/proftpd/contrib/mod_sftp/packet.h?r1=1.3&r2=1.3.2.1",
        "http://secunia.com/advisories/43234"
    ]
}