Vulnerability Instance

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{
    "url": "http://public2.vulnerablecode.io/api/vulnerabilities/71961?format=api",
    "vulnerability_id": "VCID-1un6-p5ex-9kfg",
    "summary": "mysql: Denial of Service Vulnerability in MySQL Server Optimizer",
    "aliases": [
        {
            "alias": "CVE-2025-21566"
        }
    ],
    "fixed_packages": [
        {
            "url": "http://public2.vulnerablecode.io/api/packages/931409?format=api",
            "purl": "pkg:deb/debian/mysql-8.0@0?distro=sid",
            "is_vulnerable": false,
            "affected_by_vulnerabilities": [],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/mysql-8.0@0%3Fdistro=sid"
        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/931406?format=api",
            "purl": "pkg:deb/debian/mysql-8.0@8.0.45-1?distro=sid",
            "is_vulnerable": false,
            "affected_by_vulnerabilities": [],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/mysql-8.0@8.0.45-1%3Fdistro=sid"
        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/1076094?format=api",
            "purl": "pkg:deb/debian/mysql-8.0@8.0.46-1?distro=sid",
            "is_vulnerable": false,
            "affected_by_vulnerabilities": [],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/mysql-8.0@8.0.46-1%3Fdistro=sid"
        }
    ],
    "affected_packages": [],
    "references": [
        {
            "reference_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2025-21566.json",
            "reference_id": "",
            "reference_type": "",
            "scores": [
                {
                    "value": "6.5",
                    "scoring_system": "cvssv3",
                    "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
                }
            ],
            "url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2025-21566.json"
        },
        {
            "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2025-21566",
            "reference_id": "",
            "reference_type": "",
            "scores": [
                {
                    "value": "0.00206",
                    "scoring_system": "epss",
                    "scoring_elements": "0.42989",
                    "published_at": "2026-04-02T12:55:00Z"
                },
                {
                    "value": "0.00206",
                    "scoring_system": "epss",
                    "scoring_elements": "0.4282",
                    "published_at": "2026-04-29T12:55:00Z"
                },
                {
                    "value": "0.00206",
                    "scoring_system": "epss",
                    "scoring_elements": "0.42902",
                    "published_at": "2026-04-24T12:55:00Z"
                },
                {
                    "value": "0.00206",
                    "scoring_system": "epss",
                    "scoring_elements": "0.42903",
                    "published_at": "2026-04-26T12:55:00Z"
                },
                {
                    "value": "0.00206",
                    "scoring_system": "epss",
                    "scoring_elements": "0.43016",
                    "published_at": "2026-04-04T12:55:00Z"
                },
                {
                    "value": "0.00206",
                    "scoring_system": "epss",
                    "scoring_elements": "0.42952",
                    "published_at": "2026-04-07T12:55:00Z"
                },
                {
                    "value": "0.00206",
                    "scoring_system": "epss",
                    "scoring_elements": "0.43002",
                    "published_at": "2026-04-08T12:55:00Z"
                },
                {
                    "value": "0.00206",
                    "scoring_system": "epss",
                    "scoring_elements": "0.43015",
                    "published_at": "2026-04-09T12:55:00Z"
                },
                {
                    "value": "0.00206",
                    "scoring_system": "epss",
                    "scoring_elements": "0.43038",
                    "published_at": "2026-04-11T12:55:00Z"
                },
                {
                    "value": "0.00206",
                    "scoring_system": "epss",
                    "scoring_elements": "0.43003",
                    "published_at": "2026-04-12T12:55:00Z"
                },
                {
                    "value": "0.00206",
                    "scoring_system": "epss",
                    "scoring_elements": "0.42986",
                    "published_at": "2026-04-13T12:55:00Z"
                },
                {
                    "value": "0.00206",
                    "scoring_system": "epss",
                    "scoring_elements": "0.43046",
                    "published_at": "2026-04-16T12:55:00Z"
                },
                {
                    "value": "0.00206",
                    "scoring_system": "epss",
                    "scoring_elements": "0.43034",
                    "published_at": "2026-04-18T12:55:00Z"
                },
                {
                    "value": "0.00206",
                    "scoring_system": "epss",
                    "scoring_elements": "0.4297",
                    "published_at": "2026-04-21T12:55:00Z"
                }
            ],
            "url": "https://api.first.org/data/v1/epss?cve=CVE-2025-21566"
        },
        {
            "reference_url": "https://bugzilla.redhat.com/show_bug.cgi?id=2339273",
            "reference_id": "2339273",
            "reference_type": "",
            "scores": [],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2339273"
        },
        {
            "reference_url": "https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:oracle:mysql_server:9.1.0_and_prior:*:*:*:*:*:*:*",
            "reference_id": "cpe:2.3:a:oracle:mysql_server:9.1.0_and_prior:*:*:*:*:*:*:*",
            "reference_type": "",
            "scores": [],
            "url": "https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:oracle:mysql_server:9.1.0_and_prior:*:*:*:*:*:*:*"
        },
        {
            "reference_url": "https://www.oracle.com/security-alerts/cpujan2025.html",
            "reference_id": "cpujan2025.html",
            "reference_type": "",
            "scores": [
                {
                    "value": "6.5",
                    "scoring_system": "cvssv3.1",
                    "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
                },
                {
                    "value": "Track",
                    "scoring_system": "ssvc",
                    "scoring_elements": "SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2025-01-22T14:58:46Z/"
                }
            ],
            "url": "https://www.oracle.com/security-alerts/cpujan2025.html"
        }
    ],
    "weaknesses": [
        {
            "cwe_id": 404,
            "name": "Improper Resource Shutdown or Release",
            "description": "The product does not release or incorrectly releases a resource before it is made available for re-use."
        }
    ],
    "exploits": [],
    "severity_range_score": "6.5 - 6.5",
    "exploitability": null,
    "weighted_severity": null,
    "risk_score": null,
    "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-1un6-p5ex-9kfg"
}