{"containers": {"cna": {"title": "Internet Explorer Memory Corruption Vulnerability", "datePublic": "2021-03-09T16:00:00.000Z", "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:microsoft:internet_explorer:*:*:*:*:*:*:*:*", "versionStartIncluding": "1.0.0", "versionEndExcluding": "6.0.6003.21070"}, {"vulnerable": true, "criteria": "cpe:2.3:a:microsoft:internet_explorer:*:-:*:*:*:*:*:*", "versionStartIncluding": "1.0.0", "versionEndExcluding": "10.0.17134.2087"}, {"vulnerable": true, "criteria": "cpe:2.3:a:microsoft:edge:*:*:*:*:*:*:*:*", "versionStartIncluding": "1.0..0", "versionEndExcluding": "10.0.17134.2087"}]}]}], "affected": [{"vendor": "Microsoft", "product": "Internet Explorer 11", "platforms": ["Windows 10 for 32-bit Systems", "Windows 10 for x64-based Systems", "Windows 10 Version 1607 for 32-bit Systems", "Windows 10 Version 1607 for x64-based Systems", "Windows 10 Version 1803 for 32-bit Systems", "Windows 10 Version 1803 for ARM64-based Systems", "Windows 10 Version 1803 for x64-based Systems", "Windows 10 Version 1809 for 32-bit Systems", "Windows 10 Version 1809 for ARM64-based Systems", "Windows 10 Version 1809 for x64-based Systems", "Windows 10 Version 1903 for ARM64-based Systems", "Windows 10 Version 1903 for x64-based Systems", "Windows 10 Version 1909 for 32-bit Systems", "Windows 10 Version 1909 for ARM64-based Systems", "Windows 10 Version 1909 for x64-based Systems", "Windows 10 Version 2004 for 32-bit Systems", "Windows 10 Version 2004 for ARM64-based Systems", "Windows 10 Version 2004 for x64-based Systems", "Windows 10 Version 20H2 for 32-bit Systems", "Windows 10 Version 20H2 for ARM64-based Systems", "Windows 7 for 32-bit Systems Service Pack 1", "Windows 7 for x64-based Systems Service Pack 1", "Windows 8.1 for 32-bit systems", "Windows 8.1 for x64-based systems", "Windows RT 8.1", "Windows Server 2008 R2 for x64-based Systems Service Pack 1", "Windows Server 2012", "Windows Server 2012 R2", "Windows Server 2016", "Windows Server 2019"], "versions": [{"version": "1.0.0", "lessThan": "10.0.17134.2087", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Internet Explorer 9", "platforms": ["Windows Server 2008 for 32-bit Systems Service Pack 2", "Windows Server 2008 for x64-based Systems Service Pack 2"], "versions": [{"version": "1.0.0", "lessThan": "6.0.6003.21070", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Microsoft Edge (EdgeHTML-based)", "platforms": ["Windows 10 for 32-bit Systems", "Windows 10 for x64-based Systems", "Windows 10 Version 1607 for 32-bit Systems", "Windows 10 Version 1607 for x64-based Systems", "Windows 10 Version 1803 for 32-bit Systems", "Windows 10 Version 1803 for ARM64-based Systems", "Windows 10 Version 1803 for x64-based Systems", "Windows 10 Version 1809 for 32-bit Systems", "Windows 10 Version 1809 for ARM64-based Systems", "Windows 10 Version 1809 for x64-based Systems", "Windows 10 Version 1903 for ARM64-based Systems", "Windows 10 Version 1903 for x64-based Systems", "Windows 10 Version 1909 for 32-bit Systems", "Windows 10 Version 1909 for ARM64-based Systems", "Windows 10 Version 1909 for x64-based Systems", "Windows 10 Version 2004 for 32-bit Systems", "Windows 10 Version 2004 for ARM64-based Systems", "Windows 10 Version 2004 for x64-based Systems", "Windows 10 Version 20H2 for 32-bit Systems", "Windows 10 Version 20H2 for ARM64-based Systems", "Windows Server 2016", "Windows Server 2019"], "versions": [{"version": "1.0..0", "lessThan": "10.0.17134.2087", "versionType": "custom", "status": "affected"}]}], "descriptions": [{"value": "Internet Explorer Memory Corruption Vulnerability", "lang": "en-US"}], "problemTypes": [{"descriptions": [{"description": "Remote Code Execution", "lang": "en-US", "type": "Impact"}]}], "providerMetadata": {"orgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8", "shortName": "microsoft", "dateUpdated": "2026-08-19T16:30:50.407Z"}, "references": [{"name": "Internet Explorer Memory Corruption Vulnerability", "tags": ["vendor-advisory", "patch"], "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-26411"}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en-US", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "baseSeverity": "HIGH", "baseScore": 8.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:H/A:L/E:P/RL:O/RC:C"}}]}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T20:26:25.344Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26411"}]}, {"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2021-03-05T00:00:00+00:00", "options": [{"Exploitation": "active"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3", "id": "CVE-2021-26411"}}}, {"other": {"type": "kev", "content": {"dateAdded": "2021-11-03", "reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-26411"}}}], "references": [{"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-26411", "tags": ["government-resource"]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-416", "description": "CWE-416 Use After Free"}]}], "timeline": [{"time": "2021-11-03T00:00:00.000Z", "lang": "en", "value": "CVE-2021-26411 added to CISA KEV"}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-08-12T03:55:29.420Z"}}]}, "cveMetadata": {"assignerOrgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8", "assignerShortName": "microsoft", "cveId": "CVE-2021-26411", "datePublished": "2021-03-11T15:07:28.000Z", "dateReserved": "2021-01-29T00:00:00.000Z", "dateUpdated": "2026-08-19T16:30:50.407Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.2"}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26411", "tags": ["x_refsource_MISC", "x_transferred"]}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T20:26:25.344Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2021-26411", "role": "CISA Coordinator", "options": [{"Exploitation": "active"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2025-02-04T19:14:46.489989Z"}}}, {"other": {"type": "kev", "content": {"dateAdded": "2021-11-03", "reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-26411"}}}], "timeline": [{"lang": "en", "time": "2021-11-03T00:00:00.000Z", "value": "CVE-2021-26411 added to CISA KEV"}], "references": [{"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-26411", "tags": ["government-resource"]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-416", "description": "CWE-416 Use After Free"}]}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-02-04T19:14:59.787Z"}}], "cna": {"title": "Internet Explorer Memory Corruption Vulnerability", "metrics": [{"format": "CVSS", "cvssV3_1": {"version": "3.1", "baseScore": 8.8, "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:H/A:L/E:P/RL:O/RC:C"}, "scenarios": [{"lang": "en-US", "value": "GENERAL"}]}], "affected": [{"cpes": ["cpe:2.3:a:microsoft:internet_explorer:9:*:*:*:*:*:*:*"], "vendor": "Microsoft", "product": "Internet Explorer 9", "versions": [{"status": "affected", "version": "1.0.0", "lessThan": "publication", "versionType": "custom"}], "platforms": ["Windows Server 2008 for 32-bit Systems Service Pack 2", "Windows Server 2008 for x64-based Systems Service Pack 2"]}, {"cpes": ["cpe:2.3:a:microsoft:internet_explorer:11:-:*:*:*:*:*:*"], "vendor": "Microsoft", "product": "Internet Explorer 11", "versions": [{"status": "affected", "version": "1.0.0", "lessThan": "publication", "versionType": "custom"}], "platforms": ["Windows 10 Version 1803 for 32-bit Systems", "Windows 10 Version 1803 for x64-based Systems", "Windows 10 Version 1803 for ARM64-based Systems", "Windows 10 Version 1809 for 32-bit Systems", "Windows 10 Version 1809 for x64-based Systems", "Windows 10 Version 1809 for ARM64-based Systems", "Windows Server 2019", "Windows 10 Version 1909 for 32-bit Systems", "Windows 10 Version 1909 for x64-based Systems", "Windows 10 Version 1909 for ARM64-based Systems", "Windows 10 Version 1903 for x64-based Systems", "Windows 10 Version 1903 for ARM64-based Systems", "Windows 10 Version 2004 for 32-bit Systems", "Windows 10 Version 2004 for ARM64-based Systems", "Windows 10 Version 2004 for x64-based Systems", "Windows 10 Version 20H2 for 32-bit Systems", "Windows 10 Version 20H2 for ARM64-based Systems", "Windows 10 for 32-bit Systems", "Windows 10 for x64-based Systems", "Windows 10 Version 1607 for 32-bit Systems", "Windows 10 Version 1607 for x64-based Systems", "Windows 7 for 32-bit Systems Service Pack 1", "Windows 7 for x64-based Systems Service Pack 1", "Windows 8.1 for 32-bit systems", "Windows 8.1 for x64-based systems", "Windows RT 8.1", "Windows Server 2008 R2 for x64-based Systems Service Pack 1", "Windows Server 2012", "Windows Server 2012 R2", "Windows Server 2016"]}, {"cpes": ["cpe:2.3:a:microsoft:edge:-:*:*:*:*:*:*:*"], "vendor": "Microsoft", "product": "Microsoft Edge (EdgeHTML-based)", "versions": [{"status": "affected", "version": "1.0..0", "lessThan": "publication", "versionType": "custom"}], "platforms": ["Windows 10 Version 1803 for 32-bit Systems", "Windows 10 Version 1803 for x64-based Systems", "Windows 10 Version 1803 for ARM64-based Systems", "Windows 10 Version 1809 for 32-bit Systems", "Windows 10 Version 1809 for x64-based Systems", "Windows 10 Version 1809 for ARM64-based Systems", "Windows Server 2019", "Windows 10 Version 1909 for 32-bit Systems", "Windows 10 Version 1909 for x64-based Systems", "Windows 10 Version 1909 for ARM64-based Systems", "Windows 10 Version 1903 for x64-based Systems", "Windows 10 Version 1903 for ARM64-based Systems", "Windows 10 Version 2004 for 32-bit Systems", "Windows 10 Version 2004 for ARM64-based Systems", "Windows 10 Version 2004 for x64-based Systems", "Windows 10 Version 20H2 for 32-bit Systems", "Windows 10 Version 20H2 for ARM64-based Systems", "Windows 10 for 32-bit Systems", "Windows 10 for x64-based Systems", "Windows 10 Version 1607 for 32-bit Systems", "Windows 10 Version 1607 for x64-based Systems", "Windows Server 2016"]}], "datePublic": "2021-03-09T08:00:00.000Z", "references": [{"url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26411", "tags": ["x_refsource_MISC"]}], "descriptions": [{"lang": "en-US", "value": "Internet Explorer Memory Corruption Vulnerability"}], "problemTypes": [{"descriptions": [{"lang": "en-US", "type": "Impact", "description": "Remote Code Execution"}]}], "providerMetadata": {"orgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8", "shortName": "microsoft", "dateUpdated": "2023-12-29T20:08:47.392Z"}}}, "cveMetadata": {"cveId": "CVE-2021-26411", "state": "PUBLISHED", "dateUpdated": "2026-08-12T03:55:29.420Z", "dateReserved": "2021-01-29T00:00:00.000Z", "assignerOrgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8", "datePublished": "2021-03-11T15:07:28.000Z", "assignerShortName": "microsoft"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"platforms": ["Windows 10 for 32-bit Systems", "Windows 10 for x64-based Systems", "Windows 10 Version 1607 for 32-bit Systems", "Windows 10 Version 1607 for x64-based Systems", "Windows 10 Version 1803 for 32-bit Systems", "Windows 10 Version 1803 for ARM64-based Systems", "Windows 10 Version 1803 for x64-based Systems", "Windows 10 Version 1809 for 32-bit Systems", "Windows 10 Version 1809 for ARM64-based Systems", "Windows 10 Version 1809 for x64-based Systems", "Windows 10 Version 1903 for ARM64-based Systems", "Windows 10 Version 1903 for x64-based Systems", "Windows 10 Version 1909 for 32-bit Systems", "Windows 10 Version 1909 for ARM64-based Systems", "Windows 10 Version 1909 for x64-based Systems", "Windows 10 Version 2004 for 32-bit Systems", "Windows 10 Version 2004 for ARM64-based Systems", "Windows 10 Version 2004 for x64-based Systems", "Windows 10 Version 20H2 for 32-bit Systems", "Windows 10 Version 20H2 for ARM64-based Systems", "Windows 7 for 32-bit Systems Service Pack 1", "Windows 7 for x64-based Systems Service Pack 1", "Windows 8.1 for 32-bit systems", "Windows 8.1 for x64-based systems", "Windows RT 8.1", "Windows Server 2008 R2 for x64-based Systems Service Pack 1", "Windows Server 2012", "Windows Server 2012 R2", "Windows Server 2016", "Windows Server 2019"], "product": "Internet Explorer 11", "vendor": "Microsoft", "versions": [{"lessThan": "10.0.17134.2087", "status": "affected", "version": "1.0.0", "versionType": "custom"}]}, {"platforms": ["Windows Server 2008 for 32-bit Systems Service Pack 2", "Windows Server 2008 for x64-based Systems Service Pack 2"], "product": "Internet Explorer 9", "vendor": "Microsoft", "versions": [{"lessThan": "6.0.6003.21070", "status": "affected", "version": "1.0.0", "versionType": "custom"}]}, {"platforms": ["Windows 10 for 32-bit Systems", "Windows 10 for x64-based Systems", "Windows 10 Version 1607 for 32-bit Systems", "Windows 10 Version 1607 for x64-based Systems", "Windows 10 Version 1803 for 32-bit Systems", "Windows 10 Version 1803 for ARM64-based Systems", "Windows 10 Version 1803 for x64-based Systems", "Windows 10 Version 1809 for 32-bit Systems", "Windows 10 Version 1809 for ARM64-based Systems", "Windows 10 Version 1809 for x64-based Systems", "Windows 10 Version 1903 for ARM64-based Systems", "Windows 10 Version 1903 for x64-based Systems", "Windows 10 Version 1909 for 32-bit Systems", "Windows 10 Version 1909 for ARM64-based Systems", "Windows 10 Version 1909 for x64-based Systems", "Windows 10 Version 2004 for 32-bit Systems", "Windows 10 Version 2004 for ARM64-based Systems", "Windows 10 Version 2004 for x64-based Systems", "Windows 10 Version 20H2 for 32-bit Systems", "Windows 10 Version 20H2 for ARM64-based Systems", "Windows Server 2016", "Windows Server 2019"], "product": "Microsoft Edge (EdgeHTML-based)", "vendor": "Microsoft", "versions": [{"lessThan": "10.0.17134.2087", "status": "affected", "version": "1.0..0", "versionType": "custom"}]}], "source": "secure@microsoft.com"}], "cisaActionDue": "2021-11-17", "cisaExploitAdd": "2021-11-03", "cisaRequiredAction": "Apply updates per vendor instructions.", "cisaVulnerabilityName": "Microsoft Internet Explorer Memory Corruption Vulnerability", "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:microsoft:edge:-:*:*:*:*:*:*:*", "matchCriteriaId": "77D197D7-57FB-4898-8C70-B19D5F0D5BE0", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"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_1903:-:*:*:*:*:*:arm64:*", "matchCriteriaId": "9E1ED169-6F03-4BD5-B227-5FA54DB40AD7", "vulnerable": false}, {"criteria": "cpe:2.3:o:microsoft:windows_10_1903:-:*:*:*:*:*:x64:*", "matchCriteriaId": "5C5B5180-1E12-45C2-8275-B9E528955307", "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", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:microsoft:internet_explorer:11:-:*:*:*:*:*:*", "matchCriteriaId": "D7809F78-8D56-4925-A8F9-4119B973A667", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"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_1903:-:*:*:*:*:*:arm64:*", "matchCriteriaId": "9E1ED169-6F03-4BD5-B227-5FA54DB40AD7", "vulnerable": false}, {"criteria": "cpe:2.3:o:microsoft:windows_10_1903:-:*:*:*:*:*:x64:*", "matchCriteriaId": "5C5B5180-1E12-45C2-8275-B9E528955307", "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", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:microsoft:internet_explorer:9:*:*:*:*:*:*:*", "matchCriteriaId": "C043EDDD-41BF-4718-BDCF-158BBBDB6360", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:*:*", "matchCriteriaId": "5F422A8C-2C4E-42C8-B420-E0728037E15C", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Internet Explorer Memory Corruption Vulnerability"}, {"lang": "es", "value": "Una Vulnerabilidad de Corrupci\u00f3n de la Memoria de Internet Explorer"}], "id": "CVE-2021-26411", "lastModified": "2026-08-19T19:22:21.187", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "HIGH", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 5.1, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:H/Au:N/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 4.9, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": true}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "LOW", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:H/A:L", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.3, "source": "secure@microsoft.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2021-26411", "options": [{"exploitation": "active"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2021-03-05T00:00:00+00:00", "version": "2.0.3"}}]}, "published": "2021-03-11T16:15:13.863", "references": [{"source": "secure@microsoft.com", "tags": ["Patch", "Vendor Advisory"], "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-26411"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Vendor Advisory"], "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26411"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "tags": ["US Government Resource"], "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-26411"}], "sourceIdentifier": "secure@microsoft.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-416"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-416"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{}

{}