GET

Vulnerability Instance

Lookup for vulnerabilities affecting packages.

GET /api/vulnerabilities/11818?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "url": "http://public2.vulnerablecode.io/api/vulnerabilities/11818?format=api",
    "vulnerability_id": "VCID-c7qw-u98p-1qa9",
    "summary": "Authentication Bypass by Spoofing\nMicrosoft PowerShell Spoofing Vulnerability",
    "aliases": [
        {
            "alias": "CVE-2021-43896"
        }
    ],
    "fixed_packages": [
        {
            "url": "http://public2.vulnerablecode.io/api/packages/42326?format=api",
            "purl": "pkg:nuget/PowerShell@7.2.1",
            "is_vulnerable": true,
            "affected_by_vulnerabilities": [
                {
                    "vulnerability": "VCID-6j7g-pz7c-y7hd"
                },
                {
                    "vulnerability": "VCID-7dq5-qkwa-33ey"
                },
                {
                    "vulnerability": "VCID-hh1b-rurr-9qb2"
                },
                {
                    "vulnerability": "VCID-ks36-zkdx-c3ap"
                },
                {
                    "vulnerability": "VCID-rz8f-jn6b-a7fw"
                },
                {
                    "vulnerability": "VCID-ujyg-uwtg-vqbt"
                }
            ],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:nuget/PowerShell@7.2.1"
        }
    ],
    "affected_packages": [
        {
            "url": "http://public2.vulnerablecode.io/api/packages/42325?format=api",
            "purl": "pkg:nuget/PowerShell@7.0.0",
            "is_vulnerable": true,
            "affected_by_vulnerabilities": [
                {
                    "vulnerability": "VCID-6j7g-pz7c-y7hd"
                },
                {
                    "vulnerability": "VCID-c7qw-u98p-1qa9"
                },
                {
                    "vulnerability": "VCID-hh1b-rurr-9qb2"
                },
                {
                    "vulnerability": "VCID-rz8f-jn6b-a7fw"
                },
                {
                    "vulnerability": "VCID-ujyg-uwtg-vqbt"
                },
                {
                    "vulnerability": "VCID-v2z1-w1v6-4ufg"
                }
            ],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:nuget/PowerShell@7.0.0"
        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/206749?format=api",
            "purl": "pkg:nuget/PowerShell@7.0.1",
            "is_vulnerable": true,
            "affected_by_vulnerabilities": [
                {
                    "vulnerability": "VCID-6j7g-pz7c-y7hd"
                },
                {
                    "vulnerability": "VCID-c7qw-u98p-1qa9"
                },
                {
                    "vulnerability": "VCID-hh1b-rurr-9qb2"
                },
                {
                    "vulnerability": "VCID-rz8f-jn6b-a7fw"
                },
                {
                    "vulnerability": "VCID-ujyg-uwtg-vqbt"
                }
            ],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:nuget/PowerShell@7.0.1"
        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/274831?format=api",
            "purl": "pkg:nuget/PowerShell@7.0.2",
            "is_vulnerable": true,
            "affected_by_vulnerabilities": [
                {
                    "vulnerability": "VCID-6j7g-pz7c-y7hd"
                },
                {
                    "vulnerability": "VCID-c7qw-u98p-1qa9"
                },
                {
                    "vulnerability": "VCID-hh1b-rurr-9qb2"
                },
                {
                    "vulnerability": "VCID-rz8f-jn6b-a7fw"
                },
                {
                    "vulnerability": "VCID-ujyg-uwtg-vqbt"
                }
            ],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:nuget/PowerShell@7.0.2"
        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/274832?format=api",
            "purl": "pkg:nuget/PowerShell@7.0.3",
            "is_vulnerable": true,
            "affected_by_vulnerabilities": [
                {
                    "vulnerability": "VCID-6j7g-pz7c-y7hd"
                },
                {
                    "vulnerability": "VCID-c7qw-u98p-1qa9"
                },
                {
                    "vulnerability": "VCID-hh1b-rurr-9qb2"
                },
                {
                    "vulnerability": "VCID-rz8f-jn6b-a7fw"
                },
                {
                    "vulnerability": "VCID-ujyg-uwtg-vqbt"
                }
            ],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:nuget/PowerShell@7.0.3"
        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/274833?format=api",
            "purl": "pkg:nuget/PowerShell@7.0.4",
            "is_vulnerable": true,
            "affected_by_vulnerabilities": [
                {
                    "vulnerability": "VCID-6j7g-pz7c-y7hd"
                },
                {
                    "vulnerability": "VCID-c7qw-u98p-1qa9"
                },
                {
                    "vulnerability": "VCID-hh1b-rurr-9qb2"
                },
                {
                    "vulnerability": "VCID-rz8f-jn6b-a7fw"
                },
                {
                    "vulnerability": "VCID-ujyg-uwtg-vqbt"
                }
            ],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:nuget/PowerShell@7.0.4"
        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/274834?format=api",
            "purl": "pkg:nuget/PowerShell@7.0.5",
            "is_vulnerable": true,
            "affected_by_vulnerabilities": [
                {
                    "vulnerability": "VCID-6j7g-pz7c-y7hd"
                },
                {
                    "vulnerability": "VCID-c7qw-u98p-1qa9"
                },
                {
                    "vulnerability": "VCID-hh1b-rurr-9qb2"
                },
                {
                    "vulnerability": "VCID-rz8f-jn6b-a7fw"
                },
                {
                    "vulnerability": "VCID-ujyg-uwtg-vqbt"
                }
            ],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:nuget/PowerShell@7.0.5"
        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/274835?format=api",
            "purl": "pkg:nuget/PowerShell@7.0.6",
            "is_vulnerable": true,
            "affected_by_vulnerabilities": [
                {
                    "vulnerability": "VCID-6j7g-pz7c-y7hd"
                },
                {
                    "vulnerability": "VCID-c7qw-u98p-1qa9"
                },
                {
                    "vulnerability": "VCID-hh1b-rurr-9qb2"
                },
                {
                    "vulnerability": "VCID-rz8f-jn6b-a7fw"
                },
                {
                    "vulnerability": "VCID-ujyg-uwtg-vqbt"
                }
            ],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:nuget/PowerShell@7.0.6"
        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/274836?format=api",
            "purl": "pkg:nuget/PowerShell@7.0.7",
            "is_vulnerable": true,
            "affected_by_vulnerabilities": [
                {
                    "vulnerability": "VCID-6j7g-pz7c-y7hd"
                },
                {
                    "vulnerability": "VCID-c7qw-u98p-1qa9"
                },
                {
                    "vulnerability": "VCID-hh1b-rurr-9qb2"
                },
                {
                    "vulnerability": "VCID-rz8f-jn6b-a7fw"
                },
                {
                    "vulnerability": "VCID-ujyg-uwtg-vqbt"
                }
            ],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:nuget/PowerShell@7.0.7"
        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/274837?format=api",
            "purl": "pkg:nuget/PowerShell@7.0.8",
            "is_vulnerable": true,
            "affected_by_vulnerabilities": [
                {
                    "vulnerability": "VCID-6j7g-pz7c-y7hd"
                },
                {
                    "vulnerability": "VCID-c7qw-u98p-1qa9"
                },
                {
                    "vulnerability": "VCID-hh1b-rurr-9qb2"
                },
                {
                    "vulnerability": "VCID-rz8f-jn6b-a7fw"
                },
                {
                    "vulnerability": "VCID-ujyg-uwtg-vqbt"
                }
            ],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:nuget/PowerShell@7.0.8"
        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/47290?format=api",
            "purl": "pkg:nuget/PowerShell@7.1.0",
            "is_vulnerable": true,
            "affected_by_vulnerabilities": [
                {
                    "vulnerability": "VCID-6j7g-pz7c-y7hd"
                },
                {
                    "vulnerability": "VCID-c7qw-u98p-1qa9"
                },
                {
                    "vulnerability": "VCID-hh1b-rurr-9qb2"
                }
            ],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:nuget/PowerShell@7.1.0"
        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/274838?format=api",
            "purl": "pkg:nuget/PowerShell@7.1.1",
            "is_vulnerable": true,
            "affected_by_vulnerabilities": [
                {
                    "vulnerability": "VCID-6j7g-pz7c-y7hd"
                },
                {
                    "vulnerability": "VCID-c7qw-u98p-1qa9"
                },
                {
                    "vulnerability": "VCID-hh1b-rurr-9qb2"
                }
            ],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:nuget/PowerShell@7.1.1"
        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/274839?format=api",
            "purl": "pkg:nuget/PowerShell@7.1.2",
            "is_vulnerable": true,
            "affected_by_vulnerabilities": [
                {
                    "vulnerability": "VCID-6j7g-pz7c-y7hd"
                },
                {
                    "vulnerability": "VCID-c7qw-u98p-1qa9"
                },
                {
                    "vulnerability": "VCID-hh1b-rurr-9qb2"
                }
            ],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:nuget/PowerShell@7.1.2"
        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/274840?format=api",
            "purl": "pkg:nuget/PowerShell@7.1.3",
            "is_vulnerable": true,
            "affected_by_vulnerabilities": [
                {
                    "vulnerability": "VCID-6j7g-pz7c-y7hd"
                },
                {
                    "vulnerability": "VCID-c7qw-u98p-1qa9"
                },
                {
                    "vulnerability": "VCID-hh1b-rurr-9qb2"
                }
            ],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:nuget/PowerShell@7.1.3"
        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/274841?format=api",
            "purl": "pkg:nuget/PowerShell@7.1.4",
            "is_vulnerable": true,
            "affected_by_vulnerabilities": [
                {
                    "vulnerability": "VCID-6j7g-pz7c-y7hd"
                },
                {
                    "vulnerability": "VCID-c7qw-u98p-1qa9"
                },
                {
                    "vulnerability": "VCID-hh1b-rurr-9qb2"
                }
            ],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:nuget/PowerShell@7.1.4"
        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/274842?format=api",
            "purl": "pkg:nuget/PowerShell@7.1.5",
            "is_vulnerable": true,
            "affected_by_vulnerabilities": [
                {
                    "vulnerability": "VCID-6j7g-pz7c-y7hd"
                },
                {
                    "vulnerability": "VCID-c7qw-u98p-1qa9"
                },
                {
                    "vulnerability": "VCID-hh1b-rurr-9qb2"
                }
            ],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:nuget/PowerShell@7.1.5"
        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/47291?format=api",
            "purl": "pkg:nuget/PowerShell@7.2.0",
            "is_vulnerable": true,
            "affected_by_vulnerabilities": [
                {
                    "vulnerability": "VCID-6j7g-pz7c-y7hd"
                },
                {
                    "vulnerability": "VCID-7dq5-qkwa-33ey"
                },
                {
                    "vulnerability": "VCID-c7qw-u98p-1qa9"
                },
                {
                    "vulnerability": "VCID-hh1b-rurr-9qb2"
                },
                {
                    "vulnerability": "VCID-ks36-zkdx-c3ap"
                },
                {
                    "vulnerability": "VCID-meg5-59nq-fbgk"
                },
                {
                    "vulnerability": "VCID-rz8f-jn6b-a7fw"
                },
                {
                    "vulnerability": "VCID-ujyg-uwtg-vqbt"
                }
            ],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:nuget/PowerShell@7.2.0"
        }
    ],
    "references": [
        {
            "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2021-43896",
            "reference_id": "",
            "reference_type": "",
            "scores": [
                {
                    "value": "0.04305",
                    "scoring_system": "epss",
                    "scoring_elements": "0.88895",
                    "published_at": "2026-04-18T12:55:00Z"
                },
                {
                    "value": "0.04305",
                    "scoring_system": "epss",
                    "scoring_elements": "0.88837",
                    "published_at": "2026-04-02T12:55:00Z"
                },
                {
                    "value": "0.04305",
                    "scoring_system": "epss",
                    "scoring_elements": "0.88897",
                    "published_at": "2026-04-16T12:55:00Z"
                },
                {
                    "value": "0.04305",
                    "scoring_system": "epss",
                    "scoring_elements": "0.88828",
                    "published_at": "2026-04-01T12:55:00Z"
                },
                {
                    "value": "0.04305",
                    "scoring_system": "epss",
                    "scoring_elements": "0.88852",
                    "published_at": "2026-04-04T12:55:00Z"
                },
                {
                    "value": "0.04305",
                    "scoring_system": "epss",
                    "scoring_elements": "0.88855",
                    "published_at": "2026-04-07T12:55:00Z"
                },
                {
                    "value": "0.04305",
                    "scoring_system": "epss",
                    "scoring_elements": "0.88872",
                    "published_at": "2026-04-08T12:55:00Z"
                },
                {
                    "value": "0.04305",
                    "scoring_system": "epss",
                    "scoring_elements": "0.88877",
                    "published_at": "2026-04-09T12:55:00Z"
                },
                {
                    "value": "0.04305",
                    "scoring_system": "epss",
                    "scoring_elements": "0.88889",
                    "published_at": "2026-04-11T12:55:00Z"
                },
                {
                    "value": "0.04305",
                    "scoring_system": "epss",
                    "scoring_elements": "0.88884",
                    "published_at": "2026-04-12T12:55:00Z"
                },
                {
                    "value": "0.04305",
                    "scoring_system": "epss",
                    "scoring_elements": "0.88883",
                    "published_at": "2026-04-13T12:55:00Z"
                }
            ],
            "url": "https://api.first.org/data/v1/epss?cve=CVE-2021-43896"
        },
        {
            "reference_url": "https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:microsoft:powershell:7.2:*:*:*:*:*:*:*",
            "reference_id": "cpe:2.3:a:microsoft:powershell:7.2:*:*:*:*:*:*:*",
            "reference_type": "",
            "scores": [],
            "url": "https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:microsoft:powershell:7.2:*:*:*:*:*:*:*"
        },
        {
            "reference_url": "https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:microsoft:cbl_mariner:1.0:*:*:*:*:*:*:arm",
            "reference_id": "cpe:2.3:o:microsoft:cbl_mariner:1.0:*:*:*:*:*:*:arm",
            "reference_type": "",
            "scores": [],
            "url": "https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:microsoft:cbl_mariner:1.0:*:*:*:*:*:*:arm"
        },
        {
            "reference_url": "https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:microsoft:cbl_mariner:1.0:*:*:*:*:*:*:x64",
            "reference_id": "cpe:2.3:o:microsoft:cbl_mariner:1.0:*:*:*:*:*:*:x64",
            "reference_type": "",
            "scores": [],
            "url": "https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:microsoft:cbl_mariner:1.0:*:*:*:*:*:*:x64"
        },
        {
            "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2021-43896",
            "reference_id": "CVE-2021-43896",
            "reference_type": "",
            "scores": [],
            "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-43896"
        },
        {
            "reference_url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-43896",
            "reference_id": "CVE-2021-43896",
            "reference_type": "",
            "scores": [
                {
                    "value": "5.5",
                    "scoring_system": "cvssv3.1",
                    "scoring_elements": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N"
                },
                {
                    "value": "Track",
                    "scoring_system": "ssvc",
                    "scoring_elements": "SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2024-07-18T15:48:49Z/"
                }
            ],
            "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-43896"
        }
    ],
    "weaknesses": [
        {
            "cwe_id": 1035,
            "name": "OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities",
            "description": "Weaknesses in this category are related to the A9 category in the OWASP Top Ten 2017."
        },
        {
            "cwe_id": 937,
            "name": "OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities",
            "description": "Weaknesses in this category are related to the A9 category in the OWASP Top Ten 2013."
        }
    ],
    "exploits": [],
    "severity_range_score": "5.5 - 5.5",
    "exploitability": "0.5",
    "weighted_severity": "4.4",
    "risk_score": 2.2,
    "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-c7qw-u98p-1qa9"
}