Vulnerability Instance

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{
    "url": "http://public2.vulnerablecode.io/api/vulnerabilities/89763?format=api",
    "vulnerability_id": "VCID-ktns-w8gx-nqeq",
    "summary": "libxml2: billion laughs DoS attack",
    "aliases": [
        {
            "alias": "CVE-2003-1564"
        }
    ],
    "fixed_packages": [],
    "affected_packages": [
        {
            "url": "http://public2.vulnerablecode.io/api/packages/128895?format=api",
            "purl": "pkg:rpm/redhat/libxml2@2.4.19-11?arch=ent",
            "is_vulnerable": true,
            "affected_by_vulnerabilities": [
                {
                    "vulnerability": "VCID-frd7-r2rj-s7c7"
                },
                {
                    "vulnerability": "VCID-ktns-w8gx-nqeq"
                }
            ],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:rpm/redhat/libxml2@2.4.19-11%3Farch=ent"
        }
    ],
    "references": [
        {
            "reference_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2003-1564.json",
            "reference_id": "",
            "reference_type": "",
            "scores": [],
            "url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2003-1564.json"
        },
        {
            "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2003-1564",
            "reference_id": "",
            "reference_type": "",
            "scores": [
                {
                    "value": "0.00593",
                    "scoring_system": "epss",
                    "scoring_elements": "0.69281",
                    "published_at": "2026-04-21T12:55:00Z"
                },
                {
                    "value": "0.00593",
                    "scoring_system": "epss",
                    "scoring_elements": "0.69333",
                    "published_at": "2026-04-24T12:55:00Z"
                },
                {
                    "value": "0.00593",
                    "scoring_system": "epss",
                    "scoring_elements": "0.6934",
                    "published_at": "2026-04-26T12:55:00Z"
                },
                {
                    "value": "0.00593",
                    "scoring_system": "epss",
                    "scoring_elements": "0.69347",
                    "published_at": "2026-04-29T12:55:00Z"
                },
                {
                    "value": "0.00646",
                    "scoring_system": "epss",
                    "scoring_elements": "0.70713",
                    "published_at": "2026-04-08T12:55:00Z"
                },
                {
                    "value": "0.00646",
                    "scoring_system": "epss",
                    "scoring_elements": "0.70729",
                    "published_at": "2026-04-09T12:55:00Z"
                },
                {
                    "value": "0.00646",
                    "scoring_system": "epss",
                    "scoring_elements": "0.70752",
                    "published_at": "2026-04-11T12:55:00Z"
                },
                {
                    "value": "0.00646",
                    "scoring_system": "epss",
                    "scoring_elements": "0.70657",
                    "published_at": "2026-04-01T12:55:00Z"
                },
                {
                    "value": "0.00646",
                    "scoring_system": "epss",
                    "scoring_elements": "0.7072",
                    "published_at": "2026-04-13T12:55:00Z"
                },
                {
                    "value": "0.00646",
                    "scoring_system": "epss",
                    "scoring_elements": "0.70764",
                    "published_at": "2026-04-16T12:55:00Z"
                },
                {
                    "value": "0.00646",
                    "scoring_system": "epss",
                    "scoring_elements": "0.70771",
                    "published_at": "2026-04-18T12:55:00Z"
                },
                {
                    "value": "0.00646",
                    "scoring_system": "epss",
                    "scoring_elements": "0.70735",
                    "published_at": "2026-04-12T12:55:00Z"
                },
                {
                    "value": "0.00646",
                    "scoring_system": "epss",
                    "scoring_elements": "0.70672",
                    "published_at": "2026-04-02T12:55:00Z"
                },
                {
                    "value": "0.00646",
                    "scoring_system": "epss",
                    "scoring_elements": "0.70691",
                    "published_at": "2026-04-04T12:55:00Z"
                },
                {
                    "value": "0.00646",
                    "scoring_system": "epss",
                    "scoring_elements": "0.70668",
                    "published_at": "2026-04-07T12:55:00Z"
                }
            ],
            "url": "https://api.first.org/data/v1/epss?cve=CVE-2003-1564"
        },
        {
            "reference_url": "https://bugzilla.redhat.com/show_bug.cgi?id=461107",
            "reference_id": "461107",
            "reference_type": "",
            "scores": [],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=461107"
        },
        {
            "reference_url": "https://access.redhat.com/errata/RHSA-2008:0886",
            "reference_id": "RHSA-2008:0886",
            "reference_type": "",
            "scores": [],
            "url": "https://access.redhat.com/errata/RHSA-2008:0886"
        }
    ],
    "weaknesses": [],
    "exploits": [],
    "severity_range_score": null,
    "exploitability": "0.5",
    "weighted_severity": "0.0",
    "risk_score": null,
    "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-ktns-w8gx-nqeq"
}