{
    "id": "CVE-2007-4430",
    "published": "2007-08-20 19:17:00",
    "last_modified": "2026-06-16 22:44:05",
    "cvss_score": "5.0",
    "cvss_severity": "MEDIUM",
    "cvss_version": "2.0",
    "cvss_vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
    "cwe": "CWE-20",
    "description": "Unspecified vulnerability in Cisco IOS 12.0 through 12.4 allows context-dependent attackers to cause a denial of service (device restart and BGP routing table rebuild) via certain regular expressions in a \"show ip bgp regexp\" command.  NOTE: unauthenticated remote attacks are possible in environments with anonymous telnet and Looking Glass access.",
    "epss_score": "0.13281",
    "epss_percentile": "0.96264",
    "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": "cisco",
            "product": "cbos"
        },
        {
            "vendor": "cisco",
            "product": "cli"
        },
        {
            "vendor": "cisco",
            "product": "ids"
        },
        {
            "vendor": "cisco",
            "product": "ios"
        },
        {
            "vendor": "cisco",
            "product": "ios_xr"
        }
    ],
    "kev_detail": null,
    "exploits": [
        {
            "source": "exploit-db",
            "ref_id": "30506",
            "title": "Cisco IOS 12.3 - Show IP BGP Regexp Remote Denial of Service",
            "date": "2007-08-17",
            "url": "https://www.exploit-db.com/exploits/30506"
        }
    ],
    "refs_list": [
        "http://forum.cisco.com/eforum/servlet/NetProf?page=netprof&forum=Network%20Infrastructure&topic=WAN%2C%20Routing%20and%20Switching&CommCmd=MB%3Fcmd%3Ddisplay_location%26location%3D.1ddf7bc9",
        "http://secunia.com/advisories/26798",
        "http://www.cisco.com/en/US/products/products_security_response09186a00808bb91c.html",
        "http://www.heise-security.co.uk/news/94526/",
        "http://www.securityfocus.com/bid/25352",
        "http://www.securitytracker.com/id?1018685",
        "http://www.vupen.com/english/advisories/2007/3136",
        "https://puck.nether.net/pipermail/cisco-nsp/2007-August/043002.html",
        "https://puck.nether.net/pipermail/cisco-nsp/2007-August/043010.html",
        "http://forum.cisco.com/eforum/servlet/NetProf?page=netprof&forum=Network%20Infrastructure&topic=WAN%2C%20Routing%20and%20Switching&CommCmd=MB%3Fcmd%3Ddisplay_location%26location%3D.1ddf7bc9",
        "http://secunia.com/advisories/26798",
        "http://www.cisco.com/en/US/products/products_security_response09186a00808bb91c.html",
        "http://www.heise-security.co.uk/news/94526/",
        "http://www.securityfocus.com/bid/25352",
        "http://www.securitytracker.com/id?1018685",
        "http://www.vupen.com/english/advisories/2007/3136",
        "https://puck.nether.net/pipermail/cisco-nsp/2007-August/043002.html",
        "https://puck.nether.net/pipermail/cisco-nsp/2007-August/043010.html"
    ]
}