{
    "id": "CVE-2006-4018",
    "published": "2006-08-08 20:04:00",
    "last_modified": "2026-06-16 22:28:16",
    "cvss_score": "7.5",
    "cvss_severity": "HIGH",
    "cvss_version": "2.0",
    "cvss_vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
    "cwe": "CWE-119",
    "description": "Heap-based buffer overflow in the pefromupx function in libclamav/upx.c in Clam AntiVirus (ClamAV) 0.81 through 0.88.3 allows remote attackers to execute arbitrary code via a crafted UPX packed file containing sections with large rsize values.",
    "epss_score": "0.19396",
    "epss_percentile": "0.97278",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 1,
    "updated_at": "2026-09-30 18:17:05",
    "priority": {
        "rank": 2,
        "label": "Patch early",
        "why": "A public exploit exists."
    },
    "products": [
        {
            "vendor": "clamav",
            "product": "clamav"
        }
    ],
    "kev_detail": null,
    "exploits": [
        {
            "source": "exploit-db",
            "ref_id": "28348",
            "title": "Clam Anti-Virus ClamAV 0.88.x - UPX Compressed PE File Heap Buffer Overflow",
            "date": "2006-08-07",
            "url": "https://www.exploit-db.com/exploits/28348"
        }
    ],
    "refs_list": [
        "http://kolab.org/security/kolab-vendor-notice-10.txt",
        "http://secunia.com/advisories/21368",
        "http://secunia.com/advisories/21374",
        "http://secunia.com/advisories/21433",
        "http://secunia.com/advisories/21443",
        "http://secunia.com/advisories/21457",
        "http://secunia.com/advisories/21497",
        "http://secunia.com/advisories/21562",
        "http://security.gentoo.org/glsa/glsa-200608-13.xml",
        "http://securitytracker.com/id?1016645",
        "http://www.clamav.net/security/0.88.4.html",
        "http://www.debian.org/security/2006/dsa-1153",
        "http://www.mandriva.com/security/advisories?name=MDKSA-2006:138",
        "http://www.novell.com/linux/security/advisories/2006_46_clamav.html",
        "http://www.overflow.pl/adv/clamav_upx_heap.txt",
        "http://www.securityfocus.com/archive/1/442681/100/0/threaded",
        "http://www.securityfocus.com/bid/19381",
        "http://www.trustix.org/errata/2006/0046/",
        "http://www.vupen.com/english/advisories/2006/3175",
        "http://www.vupen.com/english/advisories/2006/3275",
        "https://exchange.xforce.ibmcloud.com/vulnerabilities/28286",
        "http://kolab.org/security/kolab-vendor-notice-10.txt",
        "http://secunia.com/advisories/21368",
        "http://secunia.com/advisories/21374",
        "http://secunia.com/advisories/21433"
    ]
}