{
    "id": "CVE-2007-4459",
    "published": "2007-08-21 21:17:00",
    "last_modified": "2026-06-16 22:44:08",
    "cvss_score": "7.1",
    "cvss_severity": "HIGH",
    "cvss_version": "2.0",
    "cvss_vector": "AV:N/AC:M/Au:N/C:N/I:N/A:C",
    "cwe": "CWE-20",
    "description": "Cisco IP Phone 7940 and 7960 with P0S3-08-6-00 firmware, and other SIP firmware before 8.7(0), allows remote attackers to cause a denial of service (device reboot) via (1) a certain sequence of 10 invalid SIP INVITE and OPTIONS messages; or (2) a certain invalid SIP INVITE message that contains a remote tag, followed by a certain set of two related SIP OPTIONS messages.",
    "epss_score": "0.13989",
    "epss_percentile": "0.96447",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 1,
    "updated_at": "2026-10-02 18:17:07",
    "priority": {
        "rank": 2,
        "label": "Patch early",
        "why": "A public exploit exists."
    },
    "products": [
        {
            "vendor": "cisco",
            "product": "voip_phone_cp-7940"
        },
        {
            "vendor": "cisco",
            "product": "voip_phone_cp-7960"
        }
    ],
    "kev_detail": null,
    "exploits": [
        {
            "source": "exploit-db",
            "ref_id": "4297",
            "title": "Cisco IP Phone 7940 - 3 SIP Messages Remote Denial of Service",
            "date": "2007-08-21",
            "url": "https://www.exploit-db.com/exploits/4297"
        },
        {
            "source": "exploit-db",
            "ref_id": "4298",
            "title": "Cisco IP Phone 7940 - 10 SIP Messages Remote Denial of Service",
            "date": "2007-08-21",
            "url": "https://www.exploit-db.com/exploits/4298"
        }
    ],
    "refs_list": [
        "http://lists.grok.org.uk/pipermail/full-disclosure/2007-August/065401.html",
        "http://lists.grok.org.uk/pipermail/full-disclosure/2007-August/065402.html",
        "http://secunia.com/advisories/26547",
        "http://securityreason.com/securityalert/3042",
        "http://securitytracker.com/id?1018591",
        "http://www.cisco.com/warp/public/707/cisco-sr-20070821-sip.shtml",
        "http://www.osvdb.org/36695",
        "http://www.securityfocus.com/bid/25378",
        "http://www.vupen.com/english/advisories/2007/2928",
        "https://exchange.xforce.ibmcloud.com/vulnerabilities/36125",
        "http://lists.grok.org.uk/pipermail/full-disclosure/2007-August/065401.html",
        "http://lists.grok.org.uk/pipermail/full-disclosure/2007-August/065402.html",
        "http://secunia.com/advisories/26547",
        "http://securityreason.com/securityalert/3042",
        "http://securitytracker.com/id?1018591",
        "http://www.cisco.com/warp/public/707/cisco-sr-20070821-sip.shtml",
        "http://www.osvdb.org/36695",
        "http://www.securityfocus.com/bid/25378",
        "http://www.vupen.com/english/advisories/2007/2928",
        "https://exchange.xforce.ibmcloud.com/vulnerabilities/36125"
    ]
}