Vulnerability Instance
Lookup for vulnerabilities affecting packages.
GET /api/vulnerabilities/100721?format=api
{ "url": "http://public2.vulnerablecode.io/api/vulnerabilities/100721?format=api", "vulnerability_id": "VCID-gx57-3mtp-hqdh", "summary": "A flaw was found in samba. A race condition in the password lockout code may lead to the risk of brute force attacks being successful if special conditions are met.", "aliases": [ { "alias": "CVE-2021-20251" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/128487?format=api", "purl": "pkg:deb/debian/samba@2:4.17.2%2Bdfsg-3?distro=trixie", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/samba@2:4.17.2%252Bdfsg-3%3Fdistro=trixie" }, { "url": "http://public2.vulnerablecode.io/api/packages/195389?format=api", "purl": "pkg:deb/debian/samba@2:4.17.12%2Bdfsg-0%2Bdeb12u2", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/samba@2:4.17.12%252Bdfsg-0%252Bdeb12u2" }, { "url": "http://public2.vulnerablecode.io/api/packages/128363?format=api", "purl": "pkg:deb/debian/samba@2:4.17.12%2Bdfsg-0%2Bdeb12u3?distro=trixie", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/samba@2:4.17.12%252Bdfsg-0%252Bdeb12u3%3Fdistro=trixie" }, { "url": "http://public2.vulnerablecode.io/api/packages/128367?format=api", "purl": "pkg:deb/debian/samba@2:4.22.8%2Bdfsg-0%2Bdeb13u1?distro=trixie", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/samba@2:4.22.8%252Bdfsg-0%252Bdeb13u1%3Fdistro=trixie" }, { "url": "http://public2.vulnerablecode.io/api/packages/128366?format=api", "purl": "pkg:deb/debian/samba@2:4.24.3%2Bdfsg-1?distro=trixie", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/samba@2:4.24.3%252Bdfsg-1%3Fdistro=trixie" }, { "url": "http://public2.vulnerablecode.io/api/packages/192994?format=api", "purl": "pkg:ebuild/net-fs/samba@4.18.4", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:ebuild/net-fs/samba@4.18.4" } ], "affected_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/5636?format=api", "purl": "pkg:deb/debian/samba@2:4.13.13%2Bdfsg-1~deb11u6", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-5tc4-e6tj-3qfa" }, { "vulnerability": "VCID-7n9k-74nf-ayah" }, { "vulnerability": "VCID-7rsk-suge-a7b4" }, { "vulnerability": "VCID-8jp7-e281-tqha" }, { "vulnerability": "VCID-8yq8-wp1b-p7gt" }, { "vulnerability": "VCID-9cv8-xnmm-cyh8" }, { "vulnerability": "VCID-9kyr-nxjs-xkaw" }, { "vulnerability": "VCID-afjh-h9hy-u7dz" }, { "vulnerability": "VCID-atg1-qx5q-hfdu" }, { "vulnerability": "VCID-bkse-muh9-t7a8" }, { "vulnerability": "VCID-e2b4-vjgq-sbdq" }, { "vulnerability": "VCID-fb3p-pr3k-wbhj" }, { "vulnerability": "VCID-fj5p-xkmp-vken" }, { "vulnerability": "VCID-gec9-c1be-dkba" }, { "vulnerability": "VCID-gx57-3mtp-hqdh" }, { "vulnerability": "VCID-hxfw-6htj-wkhg" }, { "vulnerability": "VCID-j1a6-7vhx-sbh7" }, { "vulnerability": "VCID-j358-djx5-8qdw" }, { "vulnerability": "VCID-mnnu-hrtz-uyeg" }, { "vulnerability": "VCID-mtrk-m8jm-gyfg" }, { "vulnerability": "VCID-t156-69p4-s7gu" }, { "vulnerability": "VCID-usyw-3jt1-xyez" }, { "vulnerability": "VCID-wc2t-bbf1-mua5" }, { "vulnerability": "VCID-x9ky-gfg3-hfen" }, { "vulnerability": "VCID-xmpf-4zxw-dybe" }, { "vulnerability": "VCID-xt8n-4rnc-b7fs" }, { "vulnerability": "VCID-zx6s-p6p1-z7ft" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/samba@2:4.13.13%252Bdfsg-1~deb11u6" }, { "url": "http://public2.vulnerablecode.io/api/packages/128365?format=api", "purl": "pkg:deb/debian/samba@2:4.13.13%2Bdfsg-1~deb11u6?distro=trixie", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-5tc4-e6tj-3qfa" }, { "vulnerability": "VCID-7n9k-74nf-ayah" }, { "vulnerability": "VCID-7rsk-suge-a7b4" }, { "vulnerability": "VCID-8jp7-e281-tqha" }, { "vulnerability": "VCID-8yq8-wp1b-p7gt" }, { "vulnerability": "VCID-9cv8-xnmm-cyh8" }, { "vulnerability": "VCID-9kyr-nxjs-xkaw" }, { "vulnerability": "VCID-afjh-h9hy-u7dz" }, { "vulnerability": "VCID-atg1-qx5q-hfdu" }, { "vulnerability": "VCID-bkse-muh9-t7a8" }, { "vulnerability": "VCID-e2b4-vjgq-sbdq" }, { "vulnerability": "VCID-fb3p-pr3k-wbhj" }, { "vulnerability": "VCID-fj5p-xkmp-vken" }, { "vulnerability": "VCID-gec9-c1be-dkba" }, { "vulnerability": "VCID-gx57-3mtp-hqdh" }, { "vulnerability": "VCID-hxfw-6htj-wkhg" }, { "vulnerability": "VCID-j1a6-7vhx-sbh7" }, { "vulnerability": "VCID-j358-djx5-8qdw" }, { "vulnerability": "VCID-mnnu-hrtz-uyeg" }, { "vulnerability": "VCID-mtrk-m8jm-gyfg" }, { "vulnerability": "VCID-t156-69p4-s7gu" }, { "vulnerability": "VCID-usyw-3jt1-xyez" }, { "vulnerability": "VCID-wc2t-bbf1-mua5" }, { "vulnerability": "VCID-x9ky-gfg3-hfen" }, { "vulnerability": "VCID-xmpf-4zxw-dybe" }, { "vulnerability": "VCID-xt8n-4rnc-b7fs" }, { "vulnerability": "VCID-zx6s-p6p1-z7ft" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/samba@2:4.13.13%252Bdfsg-1~deb11u6%3Fdistro=trixie" } ], "references": [ { "reference_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-20251.json", "reference_id": "", "reference_type": "", "scores": [ { "value": "5.9", "scoring_system": "cvssv3", "scoring_elements": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N" } ], "url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-20251.json" }, { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2021-20251", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.00222", "scoring_system": "epss", "scoring_elements": "0.44834", "published_at": "2026-06-04T12:55:00Z" }, { "value": "0.00222", "scoring_system": "epss", "scoring_elements": "0.44904", "published_at": "2026-06-05T12:55:00Z" } ], "url": "https://api.first.org/data/v1/epss?cve=CVE-2021-20251" }, { "reference_url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20251", "reference_id": "", "reference_type": "", "scores": [], "url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20251" }, { "reference_url": "https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml", "reference_id": "", "reference_type": "", "scores": [ { "value": "8.1", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H" } ], "url": "https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml" }, { "reference_url": "https://bugzilla.redhat.com/show_bug.cgi?id=1929800", "reference_id": "1929800", "reference_type": "", "scores": [ { "value": "Track", "scoring_system": "ssvc", "scoring_elements": "SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-03-06T15:49:41Z/" } ], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1929800" }, { "reference_url": "https://security.gentoo.org/glsa/202309-06", "reference_id": "GLSA-202309-06", "reference_type": "", "scores": [ { "value": "Track", "scoring_system": "ssvc", "scoring_elements": "SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-03-06T15:49:41Z/" } ], "url": "https://security.gentoo.org/glsa/202309-06" }, { "reference_url": "https://security.netapp.com/advisory/ntap-20230331-0005/", "reference_id": "ntap-20230331-0005", "reference_type": "", "scores": [ { "value": "Track", "scoring_system": "ssvc", "scoring_elements": "SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-03-06T15:49:41Z/" } ], "url": "https://security.netapp.com/advisory/ntap-20230331-0005/" }, { "reference_url": "https://bugzilla.samba.org/show_bug.cgi?id=14611", "reference_id": "show_bug.cgi?id=14611", "reference_type": "", "scores": [ { "value": "Track", "scoring_system": "ssvc", "scoring_elements": "SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-03-06T15:49:41Z/" } ], "url": "https://bugzilla.samba.org/show_bug.cgi?id=14611" }, { "reference_url": "https://usn.ubuntu.com/5822-1/", "reference_id": "USN-5822-1", "reference_type": "", "scores": [], "url": "https://usn.ubuntu.com/5822-1/" } ], "weaknesses": [ { "cwe_id": 362, "name": "Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')", "description": "The product contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently." } ], "exploits": [], "severity_range_score": "5.9 - 8.1", "exploitability": "0.5", "weighted_severity": "5.3", "risk_score": 2.6, "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-gx57-3mtp-hqdh" }