Vulnerability Instance

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{
    "url": "http://public2.vulnerablecode.io/api/vulnerabilities/955?format=api",
    "vulnerability_id": "VCID-vyvs-sr5g-7qgf",
    "summary": "arbitrary code execution",
    "aliases": [
        {
            "alias": "CVE-2021-21900"
        }
    ],
    "fixed_packages": [
        {
            "url": "http://public2.vulnerablecode.io/api/packages/185322?format=api",
            "purl": "pkg:deb/debian/librecad@2.1.3-1.3%2Bdeb11u1?distro=trixie",
            "is_vulnerable": true,
            "affected_by_vulnerabilities": [
                {
                    "vulnerability": "VCID-5j8e-eg21-5khw"
                }
            ],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/librecad@2.1.3-1.3%252Bdeb11u1%3Fdistro=trixie"
        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/185328?format=api",
            "purl": "pkg:deb/debian/librecad@2.1.3-2?distro=trixie",
            "is_vulnerable": false,
            "affected_by_vulnerabilities": [],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/librecad@2.1.3-2%3Fdistro=trixie"
        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/185319?format=api",
            "purl": "pkg:deb/debian/librecad@2.2.0-1?distro=trixie",
            "is_vulnerable": true,
            "affected_by_vulnerabilities": [
                {
                    "vulnerability": "VCID-5j8e-eg21-5khw"
                }
            ],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/librecad@2.2.0-1%3Fdistro=trixie"
        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/185324?format=api",
            "purl": "pkg:deb/debian/librecad@2.2.0.2-1?distro=trixie",
            "is_vulnerable": false,
            "affected_by_vulnerabilities": [],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/librecad@2.2.0.2-1%3Fdistro=trixie"
        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/185323?format=api",
            "purl": "pkg:deb/debian/librecad@2.2.0.2-3?distro=trixie",
            "is_vulnerable": false,
            "affected_by_vulnerabilities": [],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/librecad@2.2.0.2-3%3Fdistro=trixie"
        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/192144?format=api",
            "purl": "pkg:ebuild/media-gfx/librecad@2.1.3-r7",
            "is_vulnerable": false,
            "affected_by_vulnerabilities": [],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:ebuild/media-gfx/librecad@2.1.3-r7"
        }
    ],
    "affected_packages": [
        {
            "url": "http://public2.vulnerablecode.io/api/packages/598?format=api",
            "purl": "pkg:alpm/archlinux/librecad@2.1.3-6",
            "is_vulnerable": true,
            "affected_by_vulnerabilities": [
                {
                    "vulnerability": "VCID-ngz2-5tyw-z3fb"
                },
                {
                    "vulnerability": "VCID-pygq-75cy-byaj"
                },
                {
                    "vulnerability": "VCID-vyvs-sr5g-7qgf"
                }
            ],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:alpm/archlinux/librecad@2.1.3-6"
        }
    ],
    "references": [
        {
            "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2021-21900",
            "reference_id": "",
            "reference_type": "",
            "scores": [
                {
                    "value": "0.0162",
                    "scoring_system": "epss",
                    "scoring_elements": "0.82137",
                    "published_at": "2026-05-30T12:55:00Z"
                }
            ],
            "url": "https://api.first.org/data/v1/epss?cve=CVE-2021-21900"
        },
        {
            "reference_url": "https://security.archlinux.org/AVG-2576",
            "reference_id": "AVG-2576",
            "reference_type": "",
            "scores": [
                {
                    "value": "Medium",
                    "scoring_system": "archlinux",
                    "scoring_elements": ""
                }
            ],
            "url": "https://security.archlinux.org/AVG-2576"
        },
        {
            "reference_url": "https://security.gentoo.org/glsa/202305-26",
            "reference_id": "GLSA-202305-26",
            "reference_type": "",
            "scores": [],
            "url": "https://security.gentoo.org/glsa/202305-26"
        },
        {
            "reference_url": "https://usn.ubuntu.com/5957-1/",
            "reference_id": "USN-5957-1",
            "reference_type": "",
            "scores": [],
            "url": "https://usn.ubuntu.com/5957-1/"
        }
    ],
    "weaknesses": [],
    "exploits": [],
    "severity_range_score": "4.0 - 6.9",
    "exploitability": "0.5",
    "weighted_severity": "6.2",
    "risk_score": 3.1,
    "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-vyvs-sr5g-7qgf"
}