Lookup for vulnerabilities affecting packages.

GET /api/vulnerabilities/56198?format=api
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{
    "url": "http://public2.vulnerablecode.io/api/vulnerabilities/56198?format=api",
    "vulnerability_id": "VCID-7sx8-amfh-wuh4",
    "summary": "Multiple vulnerabilities have been found in libXfont, the worst of\n    which could result in execution of arbitrary code or Denial of Service.",
    "aliases": [
        {
            "alias": "CVE-2015-1803"
        }
    ],
    "fixed_packages": [
        {
            "url": "http://public2.vulnerablecode.io/api/packages/571176?format=api",
            "purl": "pkg:deb/debian/libxfont@1:1.4.5-5",
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        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/1036654?format=api",
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        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/929148?format=api",
            "purl": "pkg:deb/debian/libxfont@1:1.5.1-1?distro=trixie",
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        {
            "url": "http://public2.vulnerablecode.io/api/packages/929139?format=api",
            "purl": "pkg:deb/debian/libxfont@1:2.0.4-1?distro=trixie",
            "is_vulnerable": false,
            "affected_by_vulnerabilities": [],
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        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/929137?format=api",
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            "is_vulnerable": false,
            "affected_by_vulnerabilities": [],
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        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/929140?format=api",
            "purl": "pkg:deb/debian/libxfont@1:2.0.6-2?distro=trixie",
            "is_vulnerable": false,
            "affected_by_vulnerabilities": [],
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        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/82961?format=api",
            "purl": "pkg:ebuild/x11-libs/libXfont@1.5.1",
            "is_vulnerable": false,
            "affected_by_vulnerabilities": [],
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        }
    ],
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    "references": [
        {
            "reference_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2015-1803.json",
            "reference_id": "",
            "reference_type": "",
            "scores": [],
            "url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2015-1803.json"
        },
        {
            "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2015-1803",
            "reference_id": "",
            "reference_type": "",
            "scores": [
                {
                    "value": "0.01712",
                    "scoring_system": "epss",
                    "scoring_elements": "0.82275",
                    "published_at": "2026-04-01T12:55:00Z"
                },
                {
                    "value": "0.01712",
                    "scoring_system": "epss",
                    "scoring_elements": "0.82288",
                    "published_at": "2026-04-02T12:55:00Z"
                },
                {
                    "value": "0.01712",
                    "scoring_system": "epss",
                    "scoring_elements": "0.82307",
                    "published_at": "2026-04-04T12:55:00Z"
                },
                {
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                    "scoring_system": "epss",
                    "scoring_elements": "0.82302",
                    "published_at": "2026-04-07T12:55:00Z"
                },
                {
                    "value": "0.01712",
                    "scoring_system": "epss",
                    "scoring_elements": "0.82329",
                    "published_at": "2026-04-08T12:55:00Z"
                },
                {
                    "value": "0.01712",
                    "scoring_system": "epss",
                    "scoring_elements": "0.82336",
                    "published_at": "2026-04-09T12:55:00Z"
                },
                {
                    "value": "0.01712",
                    "scoring_system": "epss",
                    "scoring_elements": "0.82356",
                    "published_at": "2026-04-11T12:55:00Z"
                },
                {
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                    "scoring_elements": "0.82349",
                    "published_at": "2026-04-12T12:55:00Z"
                },
                {
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                    "scoring_elements": "0.82344",
                    "published_at": "2026-04-13T12:55:00Z"
                },
                {
                    "value": "0.01712",
                    "scoring_system": "epss",
                    "scoring_elements": "0.82378",
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                {
                    "value": "0.01712",
                    "scoring_system": "epss",
                    "scoring_elements": "0.82379",
                    "published_at": "2026-04-18T12:55:00Z"
                },
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                    "scoring_system": "epss",
                    "scoring_elements": "0.82382",
                    "published_at": "2026-04-21T12:55:00Z"
                }
            ],
            "url": "https://api.first.org/data/v1/epss?cve=CVE-2015-1803"
        },
        {
            "reference_url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-1802",
            "reference_id": "",
            "reference_type": "",
            "scores": [],
            "url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-1802"
        },
        {
            "reference_url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-1803",
            "reference_id": "",
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        {
            "reference_url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-1804",
            "reference_id": "",
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            "url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-1804"
        },
        {
            "reference_url": "https://bugzilla.redhat.com/show_bug.cgi?id=1203718",
            "reference_id": "1203718",
            "reference_type": "",
            "scores": [],
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        {
            "reference_url": "https://security.gentoo.org/glsa/201507-21",
            "reference_id": "GLSA-201507-21",
            "reference_type": "",
            "scores": [],
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        {
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            "reference_id": "RHSA-2015:1708",
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        {
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            "reference_id": "USN-2536-1",
            "reference_type": "",
            "scores": [],
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    "weaknesses": [
        {
            "cwe_id": 252,
            "name": "Unchecked Return Value",
            "description": "The product does not check the return value from a method or function, which can prevent it from detecting unexpected states and conditions."
        },
        {
            "cwe_id": 391,
            "name": "Unchecked Error Condition",
            "description": "[PLANNED FOR DEPRECATION. SEE MAINTENANCE NOTES AND CONSIDER CWE-252, CWE-248, OR CWE-1069.] Ignoring exceptions and other error conditions may allow an attacker to induce unexpected behavior unnoticed."
        },
        {
            "cwe_id": 476,
            "name": "NULL Pointer Dereference",
            "description": "A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit."
        }
    ],
    "exploits": [],
    "severity_range_score": null,
    "exploitability": "0.5",
    "weighted_severity": "0.0",
    "risk_score": null,
    "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-7sx8-amfh-wuh4"
}