GET

Vulnerability Instance

Lookup for vulnerabilities affecting packages.

GET /api/vulnerabilities/91163?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "url": "http://public2.vulnerablecode.io/api/vulnerabilities/91163?format=api",
    "vulnerability_id": "VCID-refx-b13g-47am",
    "summary": "vsftpd 1.1.3 generates different error messages depending on whether or not a valid username exists, which allows remote attackers to identify valid usernames.",
    "aliases": [
        {
            "alias": "CVE-2004-0042"
        }
    ],
    "fixed_packages": [
        {
            "url": "http://public2.vulnerablecode.io/api/packages/942359?format=api",
            "purl": "pkg:deb/debian/vsftpd@2.0.1-1?distro=trixie",
            "is_vulnerable": false,
            "affected_by_vulnerabilities": [],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/vsftpd@2.0.1-1%3Fdistro=trixie"
        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/1049421?format=api",
            "purl": "pkg:deb/debian/vsftpd@2.0.3-1",
            "is_vulnerable": true,
            "affected_by_vulnerabilities": [
                {
                    "vulnerability": "VCID-3yfh-6jac-7qfd"
                },
                {
                    "vulnerability": "VCID-brxk-7n3t-1kb4"
                },
                {
                    "vulnerability": "VCID-jzjb-zrrm-bkdx"
                }
            ],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/vsftpd@2.0.3-1"
        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/942356?format=api",
            "purl": "pkg:deb/debian/vsftpd@3.0.3-12?distro=trixie",
            "is_vulnerable": true,
            "affected_by_vulnerabilities": [
                {
                    "vulnerability": "VCID-u8aq-2qhu-gff5"
                }
            ],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/vsftpd@3.0.3-12%3Fdistro=trixie"
        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/942354?format=api",
            "purl": "pkg:deb/debian/vsftpd@3.0.3-13?distro=trixie",
            "is_vulnerable": true,
            "affected_by_vulnerabilities": [
                {
                    "vulnerability": "VCID-u8aq-2qhu-gff5"
                }
            ],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/vsftpd@3.0.3-13%3Fdistro=trixie"
        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/942358?format=api",
            "purl": "pkg:deb/debian/vsftpd@3.0.5-0.2?distro=trixie",
            "is_vulnerable": false,
            "affected_by_vulnerabilities": [],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/vsftpd@3.0.5-0.2%3Fdistro=trixie"
        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/942357?format=api",
            "purl": "pkg:deb/debian/vsftpd@3.0.5-0.5?distro=trixie",
            "is_vulnerable": false,
            "affected_by_vulnerabilities": [],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/vsftpd@3.0.5-0.5%3Fdistro=trixie"
        }
    ],
    "affected_packages": [
        {
            "url": "http://public2.vulnerablecode.io/api/packages/1049420?format=api",
            "purl": "pkg:deb/debian/vsftpd@1.0.0-2",
            "is_vulnerable": true,
            "affected_by_vulnerabilities": [
                {
                    "vulnerability": "VCID-3yfh-6jac-7qfd"
                },
                {
                    "vulnerability": "VCID-brxk-7n3t-1kb4"
                },
                {
                    "vulnerability": "VCID-jzjb-zrrm-bkdx"
                },
                {
                    "vulnerability": "VCID-nsa2-9v4m-1kdh"
                },
                {
                    "vulnerability": "VCID-refx-b13g-47am"
                }
            ],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/vsftpd@1.0.0-2"
        }
    ],
    "references": [
        {
            "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2004-0042",
            "reference_id": "",
            "reference_type": "",
            "scores": [
                {
                    "value": "0.00497",
                    "scoring_system": "epss",
                    "scoring_elements": "0.65754",
                    "published_at": "2026-04-01T12:55:00Z"
                },
                {
                    "value": "0.00497",
                    "scoring_system": "epss",
                    "scoring_elements": "0.65804",
                    "published_at": "2026-04-02T12:55:00Z"
                },
                {
                    "value": "0.00497",
                    "scoring_system": "epss",
                    "scoring_elements": "0.65833",
                    "published_at": "2026-04-04T12:55:00Z"
                },
                {
                    "value": "0.00497",
                    "scoring_system": "epss",
                    "scoring_elements": "0.65799",
                    "published_at": "2026-04-07T12:55:00Z"
                },
                {
                    "value": "0.00497",
                    "scoring_system": "epss",
                    "scoring_elements": "0.65851",
                    "published_at": "2026-04-08T12:55:00Z"
                },
                {
                    "value": "0.00497",
                    "scoring_system": "epss",
                    "scoring_elements": "0.65863",
                    "published_at": "2026-04-09T12:55:00Z"
                },
                {
                    "value": "0.00497",
                    "scoring_system": "epss",
                    "scoring_elements": "0.65881",
                    "published_at": "2026-04-11T12:55:00Z"
                },
                {
                    "value": "0.00497",
                    "scoring_system": "epss",
                    "scoring_elements": "0.65868",
                    "published_at": "2026-04-12T12:55:00Z"
                },
                {
                    "value": "0.00497",
                    "scoring_system": "epss",
                    "scoring_elements": "0.65838",
                    "published_at": "2026-04-13T12:55:00Z"
                },
                {
                    "value": "0.00497",
                    "scoring_system": "epss",
                    "scoring_elements": "0.65874",
                    "published_at": "2026-04-16T12:55:00Z"
                },
                {
                    "value": "0.00497",
                    "scoring_system": "epss",
                    "scoring_elements": "0.65889",
                    "published_at": "2026-04-18T12:55:00Z"
                },
                {
                    "value": "0.00497",
                    "scoring_system": "epss",
                    "scoring_elements": "0.65877",
                    "published_at": "2026-04-21T12:55:00Z"
                },
                {
                    "value": "0.00497",
                    "scoring_system": "epss",
                    "scoring_elements": "0.65887",
                    "published_at": "2026-04-24T12:55:00Z"
                },
                {
                    "value": "0.00497",
                    "scoring_system": "epss",
                    "scoring_elements": "0.65898",
                    "published_at": "2026-04-26T12:55:00Z"
                },
                {
                    "value": "0.00497",
                    "scoring_system": "epss",
                    "scoring_elements": "0.65896",
                    "published_at": "2026-04-29T12:55:00Z"
                },
                {
                    "value": "0.00497",
                    "scoring_system": "epss",
                    "scoring_elements": "0.65869",
                    "published_at": "2026-05-05T12:55:00Z"
                },
                {
                    "value": "0.00497",
                    "scoring_system": "epss",
                    "scoring_elements": "0.65915",
                    "published_at": "2026-05-07T12:55:00Z"
                },
                {
                    "value": "0.00497",
                    "scoring_system": "epss",
                    "scoring_elements": "0.65959",
                    "published_at": "2026-05-09T12:55:00Z"
                },
                {
                    "value": "0.00497",
                    "scoring_system": "epss",
                    "scoring_elements": "0.6593",
                    "published_at": "2026-05-11T12:55:00Z"
                },
                {
                    "value": "0.00497",
                    "scoring_system": "epss",
                    "scoring_elements": "0.65949",
                    "published_at": "2026-05-12T12:55:00Z"
                },
                {
                    "value": "0.00497",
                    "scoring_system": "epss",
                    "scoring_elements": "0.66005",
                    "published_at": "2026-05-14T12:55:00Z"
                }
            ],
            "url": "https://api.first.org/data/v1/epss?cve=CVE-2004-0042"
        },
        {
            "reference_url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2004-0042",
            "reference_id": "",
            "reference_type": "",
            "scores": [],
            "url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2004-0042"
        }
    ],
    "weaknesses": [],
    "exploits": [],
    "severity_range_score": null,
    "exploitability": "0.5",
    "weighted_severity": "0.0",
    "risk_score": null,
    "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-refx-b13g-47am"
}