Vulnerability Instance

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{
    "url": "http://public2.vulnerablecode.io/api/vulnerabilities/78150?format=api",
    "vulnerability_id": "VCID-uqwy-cnqz-skam",
    "summary": "postgresql: Stack buffer overflow when continuously send SIGHUP",
    "aliases": [
        {
            "alias": "CVE-2020-21469"
        }
    ],
    "fixed_packages": [
        {
            "url": "http://public2.vulnerablecode.io/api/packages/935659?format=api",
            "purl": "pkg:deb/debian/postgresql-13@0?distro=bullseye",
            "is_vulnerable": false,
            "affected_by_vulnerabilities": [],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/postgresql-13@0%3Fdistro=bullseye"
        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/935658?format=api",
            "purl": "pkg:deb/debian/postgresql-13@13.16-0%2Bdeb11u1?distro=bullseye",
            "is_vulnerable": false,
            "affected_by_vulnerabilities": [],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/postgresql-13@13.16-0%252Bdeb11u1%3Fdistro=bullseye"
        }
    ],
    "affected_packages": [],
    "references": [
        {
            "reference_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-21469.json",
            "reference_id": "",
            "reference_type": "",
            "scores": [
                {
                    "value": "4.4",
                    "scoring_system": "cvssv3",
                    "scoring_elements": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H"
                }
            ],
            "url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-21469.json"
        },
        {
            "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2020-21469",
            "reference_id": "",
            "reference_type": "",
            "scores": [
                {
                    "value": "0.00026",
                    "scoring_system": "epss",
                    "scoring_elements": "0.07055",
                    "published_at": "2026-04-01T12:55:00Z"
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                    "published_at": "2026-04-24T12:55:00Z"
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                    "published_at": "2026-04-26T12:55:00Z"
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                    "published_at": "2026-04-29T12:55:00Z"
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                    "scoring_elements": "0.07252",
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            ],
            "url": "https://api.first.org/data/v1/epss?cve=CVE-2020-21469"
        },
        {
            "reference_url": "https://bugzilla.redhat.com/show_bug.cgi?id=2235010",
            "reference_id": "2235010",
            "reference_type": "",
            "scores": [],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2235010"
        }
    ],
    "weaknesses": [
        {
            "cwe_id": 120,
            "name": "Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')",
            "description": "The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow."
        }
    ],
    "exploits": [],
    "severity_range_score": "4.4 - 4.4",
    "exploitability": null,
    "weighted_severity": null,
    "risk_score": null,
    "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-uqwy-cnqz-skam"
}