Package Instance
Lookup for vulnerable packages by Package URL.
GET /api/packages/81849?format=api
{ "url": "http://public2.vulnerablecode.io/api/packages/81849?format=api", "purl": "pkg:nuget/Microsoft.NETCore.App@2.1.25", "type": "nuget", "namespace": "", "name": "Microsoft.NETCore.App", "version": "2.1.25", "qualifiers": {}, "subpath": "", "is_vulnerable": true, "next_non_vulnerable_version": "2.1.29", "latest_non_vulnerable_version": "2.2.2", "affected_by_vulnerabilities": [ { "url": "http://public2.vulnerablecode.io/api/vulnerabilities/51647?format=api", "vulnerability_id": "VCID-du1r-hgyq-z7c7", "summary": ".NET Core Information Disclosure Vulnerability\nMicrosoft is releasing this security advisory to provide information about a vulnerability in .NET 5.0, .NET Core 3.1 and .NET Core 2.1. This advisory also provides guidance on what developers can do to update their applications to remove this vulnerability.\n\nAn information disclosure vulnerability exists in .NET 5.0, .NET Core 3.1 and .NET Core 2.1 when dumps created by the tool to collect crash dumps and dumps on demand are created with global read permissions on Linux and macOS.\n\n### Patches\n\n* If you're using .NET 5.0, you should download and install Runtime 5.0.9 or SDK 5.0.206 (for Visual Studio 2019 v16.8) or SDK 5.0.303 (for Visual Studio 2019 V16.10) from https://dotnet.microsoft.com/download/dotnet-core/5.0.\n\n* If you're using .NET Core 3.1, you should download and install Runtime 3.1.18 or SDK 3.1.118 (for Visual Studio 2019 v16.4) or 3.1.412 (for Visual Studio 2019 v16.7 or later) from https://dotnet.microsoft.com/download/dotnet-core/3.1.\n\n* If you're using .NET Core 2.1, you should download and install Runtime 2.1.29 or SDK 2.1.525 (for Visual Studio 2019 v15.9) or 2.1.817 from https://dotnet.microsoft.com/download/dotnet-core/2.1.\n\n\n#### Other Details\n\n- Announcement for this issue can be found at https://github.com/dotnet/announcements/issues/196\n- An Issue for this can be found at https://github.com/dotnet/runtime/issues/57174\n- MSRC details for this can be found at https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-34485", "references": [ { "reference_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-34485.json", "reference_id": "", "reference_type": "", "scores": [ { "value": "5.5", "scoring_system": "cvssv3", "scoring_elements": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N" } ], "url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-34485.json" }, { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2021-34485", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.00665", "scoring_system": "epss", "scoring_elements": "0.71264", "published_at": "2026-04-16T12:55:00Z" }, { "value": "0.00665", "scoring_system": "epss", "scoring_elements": "0.71218", "published_at": "2026-04-13T12:55:00Z" }, { "value": "0.00665", "scoring_system": "epss", "scoring_elements": "0.71234", "published_at": "2026-04-12T12:55:00Z" }, { "value": "0.00665", "scoring_system": "epss", "scoring_elements": "0.71249", "published_at": "2026-04-11T12:55:00Z" }, { "value": "0.00665", "scoring_system": "epss", "scoring_elements": "0.71226", "published_at": "2026-04-09T12:55:00Z" }, { "value": "0.00966", "scoring_system": "epss", "scoring_elements": "0.76556", "published_at": "2026-04-08T12:55:00Z" }, { "value": "0.00966", "scoring_system": "epss", "scoring_elements": "0.76524", "published_at": "2026-04-07T12:55:00Z" }, { "value": "0.00966", "scoring_system": "epss", "scoring_elements": "0.76542", "published_at": "2026-04-04T12:55:00Z" }, { "value": "0.00966", "scoring_system": "epss", "scoring_elements": "0.76513", "published_at": "2026-04-02T12:55:00Z" }, { "value": "0.00966", "scoring_system": "epss", "scoring_elements": "0.76508", "published_at": "2026-04-01T12:55:00Z" } ], "url": "https://api.first.org/data/v1/epss?cve=CVE-2021-34485" }, { "reference_url": "https://github.com/dotnet/announcements/issues/196", "reference_id": "", "reference_type": "", "scores": [ { "value": "5.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/dotnet/announcements/issues/196" }, { "reference_url": "https://github.com/dotnet/runtime/security/advisories/GHSA-vgwq-hfqc-58wv", "reference_id": "", "reference_type": "", "scores": [ { "value": "5.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N" }, { "value": "MODERATE", "scoring_system": "cvssv3.1_qr", "scoring_elements": "" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/dotnet/runtime/security/advisories/GHSA-vgwq-hfqc-58wv" }, { "reference_url": "https://github.com/github/advisory-database/issues/741", "reference_id": "", "reference_type": "", "scores": [ { "value": "5.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/github/advisory-database/issues/741" }, { "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2021-34485", "reference_id": "", "reference_type": "", "scores": [ { "value": "5.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-34485" }, { "reference_url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34485", "reference_id": "", "reference_type": "", "scores": [ { "value": "5.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34485" }, { "reference_url": "https://bugzilla.redhat.com/show_bug.cgi?id=1990286", "reference_id": "1990286", "reference_type": "", "scores": [], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1990286" }, { "reference_url": "https://security.archlinux.org/AVG-2277", "reference_id": "AVG-2277", "reference_type": "", "scores": [ { "value": "Medium", "scoring_system": "archlinux", "scoring_elements": "" } ], "url": "https://security.archlinux.org/AVG-2277" }, { "reference_url": "https://github.com/advisories/GHSA-vgwq-hfqc-58wv", "reference_id": "GHSA-vgwq-hfqc-58wv", "reference_type": "", "scores": [ { "value": "MODERATE", "scoring_system": "cvssv3.1_qr", "scoring_elements": "" } ], "url": "https://github.com/advisories/GHSA-vgwq-hfqc-58wv" }, { "reference_url": "https://access.redhat.com/errata/RHSA-2021:3142", "reference_id": "RHSA-2021:3142", "reference_type": "", "scores": [], "url": "https://access.redhat.com/errata/RHSA-2021:3142" }, { "reference_url": "https://access.redhat.com/errata/RHSA-2021:3143", "reference_id": "RHSA-2021:3143", "reference_type": "", "scores": [], "url": "https://access.redhat.com/errata/RHSA-2021:3143" }, { "reference_url": "https://access.redhat.com/errata/RHSA-2021:3144", "reference_id": "RHSA-2021:3144", "reference_type": "", "scores": [], "url": "https://access.redhat.com/errata/RHSA-2021:3144" }, { "reference_url": "https://access.redhat.com/errata/RHSA-2021:3145", "reference_id": "RHSA-2021:3145", "reference_type": "", "scores": [], "url": "https://access.redhat.com/errata/RHSA-2021:3145" }, { "reference_url": "https://access.redhat.com/errata/RHSA-2021:3147", "reference_id": "RHSA-2021:3147", "reference_type": "", "scores": [], "url": "https://access.redhat.com/errata/RHSA-2021:3147" }, { "reference_url": "https://access.redhat.com/errata/RHSA-2021:3148", "reference_id": "RHSA-2021:3148", "reference_type": "", "scores": [], "url": "https://access.redhat.com/errata/RHSA-2021:3148" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/79292?format=api", "purl": "pkg:nuget/Microsoft.NETCore.App@2.1.29", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:nuget/Microsoft.NETCore.App@2.1.29" } ], "aliases": [ "CVE-2021-34485", "GHSA-vgwq-hfqc-58wv" ], "risk_score": 3.1, "exploitability": "0.5", "weighted_severity": "6.2", "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-du1r-hgyq-z7c7" } ], "fixing_vulnerabilities": [ { "url": "http://public2.vulnerablecode.io/api/vulnerabilities/54630?format=api", "vulnerability_id": "VCID-757k-8968-xkbx", "summary": "Denial of service in .NET core\n.NET Core and Visual Studio Denial of Service Vulnerability due to a vulnerability which exists when creating HTTPS web request during X509 certificate chain building.", "references": [ { "reference_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-1721.json", "reference_id": "", "reference_type": "", "scores": [ { "value": "6.5", "scoring_system": "cvssv3", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H" } ], "url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-1721.json" }, { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2021-1721", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.09338", "scoring_system": "epss", "scoring_elements": "0.92773", "published_at": "2026-04-16T12:55:00Z" }, { "value": "0.09338", "scoring_system": "epss", "scoring_elements": "0.92733", "published_at": "2026-04-01T12:55:00Z" }, { "value": "0.09338", "scoring_system": "epss", "scoring_elements": "0.9274", "published_at": "2026-04-02T12:55:00Z" }, { "value": "0.09338", "scoring_system": "epss", "scoring_elements": "0.92746", "published_at": "2026-04-04T12:55:00Z" }, { "value": "0.09338", "scoring_system": "epss", "scoring_elements": "0.92743", "published_at": "2026-04-07T12:55:00Z" }, { "value": "0.09338", "scoring_system": "epss", "scoring_elements": "0.92753", "published_at": "2026-04-08T12:55:00Z" }, { "value": "0.09338", "scoring_system": "epss", "scoring_elements": "0.92758", "published_at": "2026-04-09T12:55:00Z" }, { "value": "0.09338", "scoring_system": "epss", "scoring_elements": "0.92763", "published_at": "2026-04-11T12:55:00Z" }, { "value": "0.09338", "scoring_system": "epss", "scoring_elements": "0.92762", "published_at": "2026-04-13T12:55:00Z" } ], "url": "https://api.first.org/data/v1/epss?cve=CVE-2021-1721" }, { "reference_url": "https://github.com/dotnet/announcements/issues/175", "reference_id": "", "reference_type": "", "scores": [ { "value": "6.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/dotnet/announcements/issues/175" }, { "reference_url": "https://github.com/dotnet/runtime/issues/48067", "reference_id": "", "reference_type": "", "scores": [ { "value": "6.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/dotnet/runtime/issues/48067" }, { "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2021-1721", "reference_id": "", "reference_type": "", "scores": [ { "value": "6.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-1721" }, { "reference_url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-1721", "reference_id": "", "reference_type": "", "scores": [ { "value": "6.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-1721" }, { "reference_url": "https://bugzilla.redhat.com/show_bug.cgi?id=1926918", "reference_id": "1926918", "reference_type": "", "scores": [], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1926918" }, { "reference_url": "https://security.archlinux.org/ASA-202103-16", "reference_id": "ASA-202103-16", "reference_type": "", "scores": [], "url": "https://security.archlinux.org/ASA-202103-16" }, { "reference_url": "https://security.archlinux.org/ASA-202103-17", "reference_id": "ASA-202103-17", "reference_type": "", "scores": [], "url": "https://security.archlinux.org/ASA-202103-17" }, { "reference_url": "https://security.archlinux.org/AVG-1449", "reference_id": "AVG-1449", "reference_type": "", "scores": [ { "value": "High", "scoring_system": "archlinux", "scoring_elements": "" } ], "url": "https://security.archlinux.org/AVG-1449" }, { "reference_url": "https://github.com/advisories/GHSA-3gp9-h8hw-pxpw", "reference_id": "GHSA-3gp9-h8hw-pxpw", "reference_type": "", "scores": [ { "value": "MODERATE", "scoring_system": "cvssv3.1_qr", "scoring_elements": "" } ], "url": "https://github.com/advisories/GHSA-3gp9-h8hw-pxpw" }, { "reference_url": "https://access.redhat.com/errata/RHSA-2021:0470", "reference_id": "RHSA-2021:0470", "reference_type": "", "scores": [], "url": "https://access.redhat.com/errata/RHSA-2021:0470" }, { "reference_url": "https://access.redhat.com/errata/RHSA-2021:0471", "reference_id": "RHSA-2021:0471", "reference_type": "", "scores": [], "url": "https://access.redhat.com/errata/RHSA-2021:0471" }, { "reference_url": "https://access.redhat.com/errata/RHSA-2021:0472", "reference_id": "RHSA-2021:0472", "reference_type": "", "scores": [], "url": "https://access.redhat.com/errata/RHSA-2021:0472" }, { "reference_url": "https://access.redhat.com/errata/RHSA-2021:0473", "reference_id": "RHSA-2021:0473", "reference_type": "", "scores": [], "url": "https://access.redhat.com/errata/RHSA-2021:0473" }, { "reference_url": "https://access.redhat.com/errata/RHSA-2021:0474", "reference_id": "RHSA-2021:0474", "reference_type": "", "scores": [], "url": "https://access.redhat.com/errata/RHSA-2021:0474" }, { "reference_url": "https://access.redhat.com/errata/RHSA-2021:0476", "reference_id": "RHSA-2021:0476", "reference_type": "", "scores": [], "url": "https://access.redhat.com/errata/RHSA-2021:0476" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/81849?format=api", "purl": "pkg:nuget/Microsoft.NETCore.App@2.1.25", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-du1r-hgyq-z7c7" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:nuget/Microsoft.NETCore.App@2.1.25" } ], "aliases": [ "CVE-2021-1721", "GHSA-3gp9-h8hw-pxpw" ], "risk_score": 4.0, "exploitability": "0.5", "weighted_severity": "8.0", "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-757k-8968-xkbx" } ], "risk_score": "3.1", "resource_url": "http://public2.vulnerablecode.io/packages/pkg:nuget/Microsoft.NETCore.App@2.1.25" }