{"affected": [{"affectedData": [{"product": "ASP.NET Core 2.1", "vendor": "Microsoft", "versions": [{"lessThan": "2.1.29", "status": "affected", "version": "2.0", "versionType": "custom"}]}, {"product": "ASP.NET Core 3.1", "vendor": "Microsoft", "versions": [{"lessThan": "3.1.18", "status": "affected", "version": "3.0", "versionType": "custom"}]}, {"product": "ASP.NET Core 5.0", "vendor": "Microsoft", "versions": [{"lessThan": "5.0.9", "status": "affected", "version": "5.0", "versionType": "custom"}]}, {"product": "Microsoft Visual Studio 2019 version 16.10 (includes 16.0 - 16.9)", "vendor": "Microsoft", "versions": [{"lessThan": "16.10.5", "status": "affected", "version": "16.10.0", "versionType": "custom"}]}, {"product": "Microsoft Visual Studio 2019 version 16.4 (includes 16.0 - 16.3)", "vendor": "Microsoft", "versions": [{"lessThan": "16.4.25", "status": "affected", "version": "16.0", "versionType": "custom"}]}, {"product": "Microsoft Visual Studio 2019 version 16.7 (includes 16.0 \u2013 16.6)", "vendor": "Microsoft", "versions": [{"lessThan": "16.7.18", "status": "affected", "version": "16.0.0", "versionType": "custom"}]}, {"product": "Microsoft Visual Studio 2019 version 16.9 (includes 16.0 - 16.8)", "vendor": "Microsoft", "versions": [{"lessThan": "16.9.10", "status": "affected", "version": "15.0.0", "versionType": "custom"}]}, {"product": "Visual Studio 2019 for Mac version 8.10", "vendor": "Microsoft", "versions": [{"lessThan": "8.10.7", "status": "affected", "version": "8.1.0", "versionType": "custom"}]}], "source": "secure@microsoft.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:microsoft:asp.net_core:*:*:*:*:*:*:*:*", "matchCriteriaId": "6FBDFB3D-0F15-4861-990E-BEF60D40ACC8", "versionEndIncluding": "2.1.2", "versionStartIncluding": "2.1", "vulnerable": true}, {"criteria": "cpe:2.3:a:microsoft:asp.net_core:*:*:*:*:*:*:*:*", "matchCriteriaId": "9D6C55E5-4153-443B-8756-B711AB3ACEE9", "versionEndIncluding": "3.1.17", "versionStartIncluding": "3.1", "vulnerable": true}, {"criteria": "cpe:2.3:a:microsoft:asp.net_core:*:*:*:*:*:*:*:*", "matchCriteriaId": "7642F43F-3C68-44D1-8593-D6B30183C357", "versionEndIncluding": "5.0.8", "versionStartIncluding": "5.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:microsoft:visual_studio_2019:*:*:*:*:*:*:*:*", "matchCriteriaId": "26472C42-CDB4-4176-B10B-3BF26F5030E3", "versionEndIncluding": "16.10", "versionStartIncluding": "16.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:microsoft:visual_studio_2019:8.10:*:*:*:*:macos:*:*", "matchCriteriaId": "BA547FFE-D557-4612-9840-EEE88ACF53AA", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "ASP.NET Core and Visual Studio Information Disclosure Vulnerability"}, {"lang": "es", "value": "Una Vulnerabilidad de Divulgaci\u00f3n de Informaci\u00f3n en ASP.NET Core y Visual Studio"}], "id": "CVE-2021-34532", "lastModified": "2026-11-02T19:17:43.653", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "LOW", "cvssData": {"accessComplexity": "LOW", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 2.1, "confidentialityImpact": "PARTIAL", "integrityImpact": "NONE", "vectorString": "AV:L/AC:L/Au:N/C:P/I:N/A:N", "version": "2.0"}, "exploitabilityScore": 3.9, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "secure@microsoft.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2021-34532", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2025-06-04T13:28:16.969889Z", "version": "2.0.3"}}]}, "published": "2021-08-12T18:15:09.337", "references": [{"source": "secure@microsoft.com", "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-34532"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Vendor Advisory"], "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34532"}], "sourceIdentifier": "secure@microsoft.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}