{
    "id": "CVE-2011-1471",
    "published": "2011-03-20 02:00:04",
    "last_modified": "2026-06-16 23:29:24",
    "cvss_score": "4.3",
    "cvss_severity": "MEDIUM",
    "cvss_version": "2.0",
    "cvss_vector": "AV:N/AC:M/Au:N/C:N/I:N/A:P",
    "cwe": "CWE-189",
    "description": "Integer signedness error in zip_stream.c in the Zip extension in PHP before 5.3.6 allows context-dependent attackers to cause a denial of service (CPU consumption) via a malformed archive file that triggers errors in zip_fread function calls.",
    "epss_score": "0.13189",
    "epss_percentile": "0.96244",
    "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": "php",
            "product": "php"
        }
    ],
    "kev_detail": null,
    "exploits": [
        {
            "source": "exploit-db",
            "ref_id": "35485",
            "title": "PHP < 5.3.6 'Zip' Extension - 'zip_fread()' Denial of Service",
            "date": "2011-03-10",
            "url": "https://www.exploit-db.com/exploits/35485"
        }
    ],
    "refs_list": [
        "http://bugs.php.net/bug.php?id=49072",
        "http://lists.apple.com/archives/Security-announce/2011//Oct/msg00003.html",
        "http://support.apple.com/kb/HT5002",
        "http://www.debian.org/security/2011/dsa-2266",
        "http://www.mandriva.com/security/advisories?name=MDVSA-2011:052",
        "http://www.mandriva.com/security/advisories?name=MDVSA-2011:053",
        "http://www.php.net/ChangeLog-5.php",
        "http://www.redhat.com/support/errata/RHSA-2011-1423.html",
        "http://www.securityfocus.com/bid/46975",
        "http://www.vupen.com/english/advisories/2011/0744",
        "http://bugs.php.net/bug.php?id=49072",
        "http://lists.apple.com/archives/Security-announce/2011//Oct/msg00003.html",
        "http://support.apple.com/kb/HT5002",
        "http://www.debian.org/security/2011/dsa-2266",
        "http://www.mandriva.com/security/advisories?name=MDVSA-2011:052",
        "http://www.mandriva.com/security/advisories?name=MDVSA-2011:053",
        "http://www.php.net/ChangeLog-5.php",
        "http://www.redhat.com/support/errata/RHSA-2011-1423.html",
        "http://www.securityfocus.com/bid/46975",
        "http://www.vupen.com/english/advisories/2011/0744"
    ]
}