Vulnerability Instance

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{
    "url": "http://public2.vulnerablecode.io/api/vulnerabilities/73722?format=api",
    "vulnerability_id": "VCID-4ke9-jwzb-q7hf",
    "summary": "The ftp client in GNU Inetutils before 2.2 does not validate addresses returned by PASV/LSPV responses to make sure they match the server address. This is similar to CVE-2020-8284 for curl.",
    "aliases": [
        {
            "alias": "CVE-2021-40491"
        }
    ],
    "fixed_packages": [
        {
            "url": "http://public2.vulnerablecode.io/api/packages/99455?format=api",
            "purl": "pkg:deb/debian/inetutils@2:2.0-1%2Bdeb11u1?distro=trixie",
            "is_vulnerable": false,
            "affected_by_vulnerabilities": [],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/inetutils@2:2.0-1%252Bdeb11u1%3Fdistro=trixie"
        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/99444?format=api",
            "purl": "pkg:deb/debian/inetutils@2:2.0-1%2Bdeb11u2?distro=trixie",
            "is_vulnerable": false,
            "affected_by_vulnerabilities": [],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/inetutils@2:2.0-1%252Bdeb11u2%3Fdistro=trixie"
        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/99453?format=api",
            "purl": "pkg:deb/debian/inetutils@2:2.2-1?distro=trixie",
            "is_vulnerable": false,
            "affected_by_vulnerabilities": [],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/inetutils@2:2.2-1%3Fdistro=trixie"
        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/99442?format=api",
            "purl": "pkg:deb/debian/inetutils@2:2.4-2%2Bdeb12u3?distro=trixie",
            "is_vulnerable": false,
            "affected_by_vulnerabilities": [],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/inetutils@2:2.4-2%252Bdeb12u3%3Fdistro=trixie"
        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/99446?format=api",
            "purl": "pkg:deb/debian/inetutils@2:2.6-3%2Bdeb13u3?distro=trixie",
            "is_vulnerable": false,
            "affected_by_vulnerabilities": [],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/inetutils@2:2.6-3%252Bdeb13u3%3Fdistro=trixie"
        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/99445?format=api",
            "purl": "pkg:deb/debian/inetutils@2:2.8-2?distro=trixie",
            "is_vulnerable": false,
            "affected_by_vulnerabilities": [],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/inetutils@2:2.8-2%3Fdistro=trixie"
        }
    ],
    "affected_packages": [],
    "references": [
        {
            "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2021-40491",
            "reference_id": "",
            "reference_type": "",
            "scores": [
                {
                    "value": "0.00339",
                    "scoring_system": "epss",
                    "scoring_elements": "0.56886",
                    "published_at": "2026-06-04T12:55:00Z"
                }
            ],
            "url": "https://api.first.org/data/v1/epss?cve=CVE-2021-40491"
        },
        {
            "reference_url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-40491",
            "reference_id": "",
            "reference_type": "",
            "scores": [],
            "url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-40491"
        },
        {
            "reference_url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=993476",
            "reference_id": "993476",
            "reference_type": "",
            "scores": [],
            "url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=993476"
        },
        {
            "reference_url": "https://usn.ubuntu.com/USN-5177-1/",
            "reference_id": "USN-USN-5177-1",
            "reference_type": "",
            "scores": [],
            "url": "https://usn.ubuntu.com/USN-5177-1/"
        }
    ],
    "weaknesses": [],
    "exploits": [],
    "severity_range_score": null,
    "exploitability": null,
    "weighted_severity": null,
    "risk_score": null,
    "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-4ke9-jwzb-q7hf"
}