Vulnerability Instance
Lookup for vulnerabilities affecting packages.
GET /api/vulnerabilities/94883?format=api
{ "url": "http://public2.vulnerablecode.io/api/vulnerabilities/94883?format=api", "vulnerability_id": "VCID-ne61-utfg-8bgx", "summary": "Knot Resolver before 5.3.2 is prone to an assertion failure, triggerable by a remote attacker in an edge case (NSEC3 with too many iterations used for a positive wildcard proof).", "aliases": [ { "alias": "CVE-2021-40083" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/926342?format=api", "purl": "pkg:deb/debian/knot-resolver@5.3.1-1%2Bdeb11u1?distro=trixie", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-66sa-bc5p-jqde" }, { "vulnerability": "VCID-c7c5-awxv-j3de" }, { "vulnerability": "VCID-efrw-bm7j-6qgz" }, { "vulnerability": "VCID-ps4g-f1q9-wqhm" }, { "vulnerability": "VCID-vprj-j7u6-zbe7" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/knot-resolver@5.3.1-1%252Bdeb11u1%3Fdistro=trixie" }, { "url": "http://public2.vulnerablecode.io/api/packages/1051365?format=api", "purl": "pkg:deb/debian/knot-resolver@5.3.1-1%2Bdeb11u1", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-66sa-bc5p-jqde" }, { "vulnerability": "VCID-c7c5-awxv-j3de" }, { "vulnerability": "VCID-efrw-bm7j-6qgz" }, { "vulnerability": "VCID-ps4g-f1q9-wqhm" }, { "vulnerability": "VCID-vprj-j7u6-zbe7" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/knot-resolver@5.3.1-1%252Bdeb11u1" }, { "url": "http://public2.vulnerablecode.io/api/packages/926349?format=api", "purl": "pkg:deb/debian/knot-resolver@5.4.1-2?distro=trixie", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/knot-resolver@5.4.1-2%3Fdistro=trixie" }, { "url": "http://public2.vulnerablecode.io/api/packages/926340?format=api", "purl": "pkg:deb/debian/knot-resolver@5.6.0-1%2Bdeb12u1?distro=trixie", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/knot-resolver@5.6.0-1%252Bdeb12u1%3Fdistro=trixie" }, { "url": "http://public2.vulnerablecode.io/api/packages/926344?format=api", "purl": "pkg:deb/debian/knot-resolver@5.7.5-1?distro=trixie", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/knot-resolver@5.7.5-1%3Fdistro=trixie" }, { "url": "http://public2.vulnerablecode.io/api/packages/926343?format=api", "purl": "pkg:deb/debian/knot-resolver@6.2.0-2?distro=trixie", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/knot-resolver@6.2.0-2%3Fdistro=trixie" } ], "affected_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/1051364?format=api", "purl": "pkg:deb/debian/knot-resolver@3.2.1-3", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-2wu3-v2hz-q3bv" }, { "vulnerability": "VCID-8ks2-kv5d-gkdc" }, { "vulnerability": "VCID-fptj-ztkq-7uag" }, { "vulnerability": "VCID-g2wb-bccm-ufhn" }, { "vulnerability": "VCID-ne61-utfg-8bgx" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/knot-resolver@3.2.1-3" } ], "references": [ { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2021-40083", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.0084", "scoring_system": "epss", "scoring_elements": "0.74656", "published_at": "2026-04-01T12:55:00Z" }, { "value": "0.0084", "scoring_system": "epss", "scoring_elements": "0.7466", "published_at": "2026-04-02T12:55:00Z" }, { "value": "0.0084", "scoring_system": "epss", "scoring_elements": "0.74687", "published_at": "2026-04-04T12:55:00Z" }, { "value": "0.0084", "scoring_system": "epss", "scoring_elements": "0.74661", "published_at": "2026-04-07T12:55:00Z" }, { "value": "0.0084", "scoring_system": "epss", "scoring_elements": "0.74693", "published_at": "2026-04-08T12:55:00Z" }, { "value": "0.0084", "scoring_system": "epss", "scoring_elements": "0.74708", "published_at": "2026-04-09T12:55:00Z" }, { "value": "0.0084", "scoring_system": "epss", "scoring_elements": "0.74731", "published_at": "2026-04-11T12:55:00Z" }, { "value": "0.0084", "scoring_system": "epss", "scoring_elements": "0.7471", "published_at": "2026-04-12T12:55:00Z" }, { "value": "0.0084", "scoring_system": "epss", "scoring_elements": "0.74702", "published_at": "2026-04-13T12:55:00Z" }, { "value": "0.0084", "scoring_system": "epss", "scoring_elements": "0.74739", "published_at": "2026-04-16T12:55:00Z" }, { "value": "0.0084", "scoring_system": "epss", "scoring_elements": "0.74747", "published_at": "2026-04-18T12:55:00Z" } ], "url": "https://api.first.org/data/v1/epss?cve=CVE-2021-40083" }, { "reference_url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-40083", "reference_id": "", "reference_type": "", "scores": [], "url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-40083" }, { "reference_url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=991463", "reference_id": "991463", "reference_type": "", "scores": [], "url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=991463" } ], "weaknesses": [], "exploits": [], "severity_range_score": null, "exploitability": "0.5", "weighted_severity": "0.0", "risk_score": null, "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-ne61-utfg-8bgx" }