{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-05-02T14:55:22.858","vulnerabilities":[{"cve":{"id":"CVE-2021-4300","sourceIdentifier":"cna@vuldb.com","published":"2023-01-04T22:15:08.903","lastModified":"2024-11-21T06:37:21.437","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"A vulnerability has been found in ghostlander Halcyon and classified as critical. Affected by this vulnerability is the function CBlock::AddToBlockIndex of the file src/main.cpp of the component Block Verification. The manipulation leads to improper access controls. The attack can be launched remotely. Upgrading to version 1.1.1.0-hal is able to address this issue. The identifier of the patch is 0675b25ae9cc10b5fdc8ea3a32c642979762d45e. It is recommended to upgrade the affected component. The identifier VDB-217417 was assigned to this vulnerability."},{"lang":"es","value":"Se ha encontrado una vulnerabilidad en Ghostlander Halcyon y ha sido clasificada como crítica. La función CBlock::AddToBlockIndex del archivo src/main.cpp del componente Block Verification es afectada por esta vulnerabilidad. La manipulación conduce a controles de acceso inadecuados. El ataque se puede lanzar de forma remota. La actualización a la versión 1.1.1.0-hal puede solucionar este problema. El identificador del parche es 0675b25ae9cc10b5fdc8ea3a32c642979762d45e. Se recomienda actualizar el componente afectado. A esta vulnerabilidad se le asignó el identificador VDB-217417."}],"metrics":{"cvssMetricV31":[{"source":"cna@vuldb.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L","baseScore":6.3,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"LOW","integrityImpact":"LOW","availabilityImpact":"LOW"},"exploitabilityScore":2.8,"impactScore":3.4},{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","baseScore":9.8,"baseSeverity":"CRITICAL","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":3.9,"impactScore":5.9}],"cvssMetricV2":[{"source":"cna@vuldb.com","type":"Secondary","cvssData":{"version":"2.0","vectorString":"AV:N/AC:L/Au:S/C:P/I:P/A:P","baseScore":6.5,"accessVector":"NETWORK","accessComplexity":"LOW","authentication":"SINGLE","confidentialityImpact":"PARTIAL","integrityImpact":"PARTIAL","availabilityImpact":"PARTIAL"},"baseSeverity":"MEDIUM","exploitabilityScore":8.0,"impactScore":6.4,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}]},"weaknesses":[{"source":"cna@vuldb.com","type":"Secondary","description":[{"lang":"en","value":"CWE-284"}]},{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"NVD-CWE-Other"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:halcyon_project:halcyon:*:*:*:*:*:*:*:*","versionEndExcluding":"1.1.1.0","matchCriteriaId":"FD1553FD-C96D-4F32-B93F-E785D7CC4329"}]}]}],"references":[{"url":"https://github.com/ghostlander/Halcyon/commit/0675b25ae9cc10b5fdc8ea3a32c642979762d45e","source":"cna@vuldb.com","tags":["Patch"]},{"url":"https://github.com/ghostlander/Halcyon/releases/tag/v1.1.1.0-hal","source":"cna@vuldb.com","tags":["Release Notes"]},{"url":"https://vuldb.com/?ctiid.217417","source":"cna@vuldb.com","tags":["Permissions Required","Third Party Advisory"]},{"url":"https://vuldb.com/?id.217417","source":"cna@vuldb.com","tags":["Permissions Required","Third Party Advisory"]},{"url":"https://github.com/ghostlander/Halcyon/commit/0675b25ae9cc10b5fdc8ea3a32c642979762d45e","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"]},{"url":"https://github.com/ghostlander/Halcyon/releases/tag/v1.1.1.0-hal","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Release Notes"]},{"url":"https://vuldb.com/?ctiid.217417","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Permissions Required","Third Party Advisory"]},{"url":"https://vuldb.com/?id.217417","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Permissions Required","Third Party Advisory"]}]}}]}