{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-21T13:16:17.288","vulnerabilities":[{"cve":{"id":"CVE-2021-26411","sourceIdentifier":"secure@microsoft.com","published":"2021-03-11T16:15:13.863","lastModified":"2025-10-30T19:56:10.210","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"Internet Explorer Memory Corruption Vulnerability"},{"lang":"es","value":"Una Vulnerabilidad de Corrupción de la Memoria de Internet Explorer"}],"metrics":{"cvssMetricV31":[{"source":"secure@microsoft.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:H/A:L","baseScore":8.8,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"CHANGED","confidentialityImpact":"LOW","integrityImpact":"HIGH","availabilityImpact":"LOW"},"exploitabilityScore":2.8,"impactScore":5.3},{"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:H/I:H/A:H","baseScore":8.8,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":2.8,"impactScore":5.9}],"cvssMetricV2":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"2.0","vectorString":"AV:N/AC:H/Au:N/C:P/I:P/A:P","baseScore":5.1,"accessVector":"NETWORK","accessComplexity":"HIGH","authentication":"NONE","confidentialityImpact":"PARTIAL","integrityImpact":"PARTIAL","availabilityImpact":"PARTIAL"},"baseSeverity":"MEDIUM","exploitabilityScore":4.9,"impactScore":6.4,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":true}]},"cisaExploitAdd":"2021-11-03","cisaActionDue":"2021-11-17","cisaRequiredAction":"Apply updates per vendor instructions.","cisaVulnerabilityName":"Microsoft Internet Explorer Memory Corruption Vulnerability","weaknesses":[{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-416"}]},{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","type":"Secondary","description":[{"lang":"en","value":"CWE-416"}]}],"configurations":[{"operator":"AND","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:microsoft:edge:-:*:*:*:*:*:*:*","matchCriteriaId":"77D197D7-57FB-4898-8C70-B19D5F0D5BE0"}]},{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":false,"criteria":"cpe:2.3:o:microsoft:windows_10_1507:-:*:*:*:*:*:*:*","matchCriteriaId":"542DAEEC-73CC-46C6-A630-BF474A3446AC"},{"vulnerable":false,"criteria":"cpe:2.3:o:microsoft:windows_10_1607:-:*:*:*:*:*:*:*","matchCriteriaId":"61019899-D7AF-46E4-A72C-D189180F66AB"},{"vulnerable":false,"criteria":"cpe:2.3:o:microsoft:windows_10_1803:-:*:*:*:*:*:*:*","matchCriteriaId":"00345596-E9E0-4096-8DC6-0212F4747A13"},{"vulnerable":false,"criteria":"cpe:2.3:o:microsoft:windows_10_1809:-:*:*:*:*:*:*:*","matchCriteriaId":"2E332666-2E03-468E-BC30-299816D6E8ED"},{"vulnerable":false,"criteria":"cpe:2.3:o:microsoft:windows_10_1909:-:*:*:*:*:*:*:*","matchCriteriaId":"A1B570A8-ED1A-46B6-B8AB-064445F8FC4C"},{"vulnerable":false,"criteria":"cpe:2.3:o:microsoft:windows_10_2004:-:*:*:*:*:*:*:*","matchCriteriaId":"D4DBE5B2-AE10-4251-BCDA-DC5EDEE6EE67"},{"vulnerable":false,"criteria":"cpe:2.3:o:microsoft:windows_10_20h2:-:*:*:*:*:*:*:*","matchCriteriaId":"6AFD13A6-A390-4400-9029-2F4058CA17E2"},{"vulnerable":false,"criteria":"cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:*","matchCriteriaId":"041FF8BA-0B12-4A1F-B4BF-9C4F33B7C1E7"},{"vulnerable":false,"criteria":"cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:*","matchCriteriaId":"DB79EE26-FC32-417D-A49C-A1A63165A968"}]}]},{"operator":"AND","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:microsoft:internet_explorer:11:-:*:*:*:*:*:*","matchCriteriaId":"D7809F78-8D56-4925-A8F9-4119B973A667"}]},{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":false,"criteria":"cpe:2.3:o:microsoft:windows_10_1507:-:*:*:*:*:*:*:*","matchCriteriaId":"542DAEEC-73CC-46C6-A630-BF474A3446AC"},{"vulnerable":false,"criteria":"cpe:2.3:o:microsoft:windows_10_1607:-:*:*:*:*:*:*:*","matchCriteriaId":"61019899-D7AF-46E4-A72C-D189180F66AB"},{"vulnerable":false,"criteria":"cpe:2.3:o:microsoft:windows_10_1803:-:*:*:*:*:*:*:*","matchCriteriaId":"00345596-E9E0-4096-8DC6-0212F4747A13"},{"vulnerable":false,"criteria":"cpe:2.3:o:microsoft:windows_10_1809:-:*:*:*:*:*:*:*","matchCriteriaId":"2E332666-2E03-468E-BC30-299816D6E8ED"},{"vulnerable":false,"criteria":"cpe:2.3:o:microsoft:windows_10_1909:-:*:*:*:*:*:*:*","matchCriteriaId":"A1B570A8-ED1A-46B6-B8AB-064445F8FC4C"},{"vulnerable":false,"criteria":"cpe:2.3:o:microsoft:windows_10_2004:-:*:*:*:*:*:*:*","matchCriteriaId":"D4DBE5B2-AE10-4251-BCDA-DC5EDEE6EE67"},{"vulnerable":false,"criteria":"cpe:2.3:o:microsoft:windows_10_20h2:-:*:*:*:*:*:*:*","matchCriteriaId":"6AFD13A6-A390-4400-9029-2F4058CA17E2"},{"vulnerable":false,"criteria":"cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:*:*","matchCriteriaId":"C2B1C231-DE19-4B8F-A4AA-5B3A65276E46"},{"vulnerable":false,"criteria":"cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:*:*:*:*","matchCriteriaId":"E93068DB-549B-45AB-8E5C-00EB5D8B5CF8"},{"vulnerable":false,"criteria":"cpe:2.3:o:microsoft:windows_rt_8.1:-:*:*:*:*:*:*:*","matchCriteriaId":"C6CE5198-C498-4672-AF4C-77AB4BE06C5C"},{"vulnerable":false,"criteria":"cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:*","matchCriteriaId":"AF07A81D-12E5-4B1D-BFF9-C8D08C32FF4F"},{"vulnerable":false,"criteria":"cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*","matchCriteriaId":"A7DF96F8-BA6A-4780-9CA3-F719B3F81074"},{"vulnerable":false,"criteria":"cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*","matchCriteriaId":"DB18C4CE-5917-401E-ACF7-2747084FD36E"},{"vulnerable":false,"criteria":"cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:*","matchCriteriaId":"041FF8BA-0B12-4A1F-B4BF-9C4F33B7C1E7"},{"vulnerable":false,"criteria":"cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:*","matchCriteriaId":"DB79EE26-FC32-417D-A49C-A1A63165A968"}]}]},{"operator":"AND","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:microsoft:internet_explorer:9:*:*:*:*:*:*:*","matchCriteriaId":"C043EDDD-41BF-4718-BDCF-158BBBDB6360"}]},{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":false,"criteria":"cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:*:*","matchCriteriaId":"5F422A8C-2C4E-42C8-B420-E0728037E15C"}]}]}],"references":[{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26411","source":"secure@microsoft.com","tags":["Patch","Vendor Advisory"]},{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26411","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch","Vendor Advisory"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-26411","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","tags":["US Government Resource"]}]}}]}