{
    "id": "CVE-2007-1383",
    "published": "2007-03-10 00:19:00",
    "last_modified": "2026-06-16 22:37:28",
    "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-189",
    "description": "Integer overflow in the 16 bit variable reference counter in PHP 4 allows context-dependent attackers to execute arbitrary code by overflowing this counter, which causes the same variable to be destroyed twice, a related issue to CVE-2007-1286.",
    "epss_score": "0.15195",
    "epss_percentile": "0.96642",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 1,
    "updated_at": "2026-09-27 18:17:06",
    "priority": {
        "rank": 2,
        "label": "Patch early",
        "why": "A public exploit exists."
    },
    "products": [
        {
            "vendor": "php",
            "product": "php"
        }
    ],
    "kev_detail": null,
    "exploits": [
        {
            "source": "exploit-db",
            "ref_id": "3394",
            "title": "PHP 4 - Userland ZVAL Reference Counter Overflow (PoC)",
            "date": "2007-03-01",
            "url": "https://www.exploit-db.com/exploits/3394"
        }
    ],
    "refs_list": [
        "http://secunia.com/advisories/24606",
        "http://secunia.com/advisories/25056",
        "http://security.gentoo.org/glsa/glsa-200703-21.xml",
        "http://www.novell.com/linux/security/advisories/2007_32_php.html",
        "http://www.osvdb.org/32770",
        "http://www.php-security.org/MOPB/MOPB-01-2007.html",
        "http://www.securityfocus.com/bid/22765",
        "http://secunia.com/advisories/24606",
        "http://secunia.com/advisories/25056",
        "http://security.gentoo.org/glsa/glsa-200703-21.xml",
        "http://www.novell.com/linux/security/advisories/2007_32_php.html",
        "http://www.osvdb.org/32770",
        "http://www.php-security.org/MOPB/MOPB-01-2007.html",
        "http://www.securityfocus.com/bid/22765"
    ]
}