{
    "id": "CVE-2010-4156",
    "published": "2010-11-10 03:00:02",
    "last_modified": "2026-06-16 23:24:13",
    "cvss_score": "5.0",
    "cvss_severity": "MEDIUM",
    "cvss_version": "2.0",
    "cvss_vector": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
    "cwe": "CWE-20",
    "description": "The mb_strcut function in Libmbfl 1.1.0, as used in PHP 5.3.x through 5.3.3, allows context-dependent attackers to obtain potentially sensitive information via a large value of the third parameter (aka the length parameter).",
    "epss_score": "0.12786",
    "epss_percentile": "0.96150",
    "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": "php",
            "product": "php"
        },
        {
            "vendor": "scottmac",
            "product": "libmbfl"
        }
    ],
    "kev_detail": null,
    "exploits": [
        {
            "source": "exploit-db",
            "ref_id": "34979",
            "title": "PHP 5.3.x - 'mb_strcut()' Information Disclosure",
            "date": "2010-11-07",
            "url": "https://www.exploit-db.com/exploits/34979"
        }
    ],
    "refs_list": [
        "http://lists.fedoraproject.org/pipermail/package-announce/2011-January/052836.html",
        "http://lists.fedoraproject.org/pipermail/package-announce/2011-January/052845.html",
        "http://marc.info/?l=bugtraq&m=130331363227777&w=2",
        "http://pastie.org/1279428",
        "http://pastie.org/1279682",
        "http://secunia.com/advisories/42135",
        "http://secunia.com/advisories/42812",
        "http://secunia.com/advisories/43189",
        "http://www.mandriva.com/security/advisories?name=MDVSA-2010:225",
        "http://www.openwall.com/lists/oss-security/2010/11/07/2",
        "http://www.openwall.com/lists/oss-security/2010/11/08/13",
        "http://www.php.net/ChangeLog-5.php",
        "http://www.redhat.com/support/errata/RHSA-2011-0196.html",
        "http://www.securityfocus.com/bid/44727",
        "http://www.ubuntu.com/usn/USN-1042-1",
        "http://www.vupen.com/english/advisories/2011/0020",
        "http://www.vupen.com/english/advisories/2011/0021",
        "http://www.vupen.com/english/advisories/2011/0077",
        "http://lists.fedoraproject.org/pipermail/package-announce/2011-January/052836.html",
        "http://lists.fedoraproject.org/pipermail/package-announce/2011-January/052845.html",
        "http://marc.info/?l=bugtraq&m=130331363227777&w=2",
        "http://pastie.org/1279428",
        "http://pastie.org/1279682",
        "http://secunia.com/advisories/42135",
        "http://secunia.com/advisories/42812"
    ]
}