{ "id": "CVE-2021-1721", "sourceIdentifier": "secure@microsoft.com", "published": "2021-02-25T23:15:13.210", "lastModified": "2023-12-29T17:15:53.590", "vulnStatus": "Modified", "descriptions": [ { "lang": "en", "value": ".NET Core and Visual Studio Denial of Service Vulnerability" }, { "lang": "es", "value": "Una Vulnerabilidad de Denegaci\u00f3n de Servicio de .NET Core y Visual Studio" } ], "metrics": { "cvssMetricV31": [ { "source": "secure@microsoft.com", "type": "Primary", "cvssData": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH", "baseScore": 6.5, "baseSeverity": "MEDIUM" }, "exploitabilityScore": 2.8, "impactScore": 3.6 }, { "source": "nvd@nist.gov", "type": "Secondary", "cvssData": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH", "baseScore": 6.5, "baseSeverity": "MEDIUM" }, "exploitabilityScore": 2.8, "impactScore": 3.6 } ], "cvssMetricV2": [ { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "2.0", "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P", "accessVector": "NETWORK", "accessComplexity": "MEDIUM", "authentication": "NONE", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 4.3 }, "baseSeverity": "MEDIUM", "exploitabilityScore": 8.6, "impactScore": 2.9, "acInsufInfo": false, "obtainAllPrivilege": false, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": true } ] }, "weaknesses": [ { "source": "nvd@nist.gov", "type": "Primary", "description": [ { "lang": "en", "value": "NVD-CWE-noinfo" } ] } ], "configurations": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.0", "versionEndIncluding": "5.0.2", "matchCriteriaId": "8797E7EA-A66B-4B9C-AA2A-DAB08A8A16DB" }, { "vulnerable": true, "criteria": "cpe:2.3:a:microsoft:.net_core:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.1", "versionEndIncluding": "2.1.24", "matchCriteriaId": "7C5D87DA-378D-4457-986B-8A0796ED00EB" }, { "vulnerable": true, "criteria": "cpe:2.3:a:microsoft:.net_core:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.1", "versionEndIncluding": "3.1.11", "matchCriteriaId": "1B672ED7-CB65-4D0E-AD4B-4508C4FA8C92" }, { "vulnerable": true, "criteria": "cpe:2.3:a:microsoft:powershell_core:7.0:*:*:*:*:*:*:*", "matchCriteriaId": "6A812D8D-C6DA-473E-A604-988BCDA26CDD" }, { "vulnerable": true, "criteria": "cpe:2.3:a:microsoft:powershell_core:7.1:*:*:*:*:*:*:*", "matchCriteriaId": "AAFBD34E-F04C-4B1B-AFD4-0D926BC30609" }, { "vulnerable": true, "criteria": "cpe:2.3:a:microsoft:visual_studio_2017:*:*:*:*:*:*:*:*", "versionStartIncluding": "15.0", "versionEndIncluding": "15.9", "matchCriteriaId": "CE03B37D-72FE-4C25-BE62-9C422AEFC80E" }, { "vulnerable": true, "criteria": "cpe:2.3:a:microsoft:visual_studio_2019:*:*:*:*:*:*:*:*", "versionStartIncluding": "16.0", "versionEndIncluding": "16.8", "matchCriteriaId": "FD824DE6-3564-4B7D-B45C-2EEE1F84C9D2" } ] } ] } ], "references": [ { "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-1721", "source": "secure@microsoft.com", "tags": [ "Patch", "Vendor Advisory" ] } ] }