{ "id": "CVE-2021-43256", "sourceIdentifier": "secure@microsoft.com", "published": "2021-12-15T15:15:10.730", "lastModified": "2022-01-01T17:48:53.907", "vulnStatus": "Analyzed", "descriptions": [ { "lang": "en", "value": "Microsoft Excel Remote Code Execution Vulnerability" }, { "lang": "es", "value": "Una vulnerabilidad de Ejecuci\u00f3n de C\u00f3digo Remota en Microsoft Excel" } ], "metrics": { "cvssMetricV31": [ { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH" }, "exploitabilityScore": 1.8, "impactScore": 5.9 }, { "source": "secure@microsoft.com", "type": "Secondary", "cvssData": { "version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH" }, "exploitabilityScore": 1.8, "impactScore": 5.9 } ], "cvssMetricV2": [ { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "2.0", "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "accessVector": "NETWORK", "accessComplexity": "MEDIUM", "authentication": "NONE", "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "baseScore": 6.8 }, "baseSeverity": "MEDIUM", "exploitabilityScore": 8.6, "impactScore": 6.4, "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:365_apps:-:*:*:*:enterprise:*:x64:*", "matchCriteriaId": "3259EBFE-AE2D-48B8-BE9A-E22BBDB31378" }, { "vulnerable": true, "criteria": "cpe:2.3:a:microsoft:365_apps:-:*:*:*:enterprise:*:x86:*", "matchCriteriaId": "CD25F492-9272-4836-832C-8439EBE64CCF" }, { "vulnerable": true, "criteria": "cpe:2.3:a:microsoft:excel:2013:sp1:*:*:*:*:x64:*", "matchCriteriaId": "48B20360-1A85-4A6A-BA03-0B62C97CCB0C" }, { "vulnerable": true, "criteria": "cpe:2.3:a:microsoft:excel:2013:sp1:*:*:*:*:x86:*", "matchCriteriaId": "E8426C4D-C00D-44C2-B072-9D600C8B9543" }, { "vulnerable": true, "criteria": "cpe:2.3:a:microsoft:excel:2016:*:*:*:*:*:x64:*", "matchCriteriaId": "CD88F667-6773-4DB7-B6C3-9C7B769C0808" }, { "vulnerable": true, "criteria": "cpe:2.3:a:microsoft:excel:2016:*:*:*:*:*:x86:*", "matchCriteriaId": "B342EF98-B414-44D0-BAFB-FCA24294EECE" }, { "vulnerable": true, "criteria": "cpe:2.3:a:microsoft:excel_rt:2013:sp1:*:*:*:*:*:*", "matchCriteriaId": "27745C7E-94A0-4C2A-8318-684CB85F48D2" }, { "vulnerable": true, "criteria": "cpe:2.3:a:microsoft:office:2019:*:*:*:*:*:x64:*", "matchCriteriaId": "CF5DDD09-902E-4881-98D0-CB896333B4AA" }, { "vulnerable": true, "criteria": "cpe:2.3:a:microsoft:office:2019:*:*:*:*:*:x86:*", "matchCriteriaId": "26A3B226-5D7C-4556-9350-5222DC8EFC2C" }, { "vulnerable": true, "criteria": "cpe:2.3:a:microsoft:office:2021:*:*:*:ltsc:*:x64:*", "matchCriteriaId": "1AC0C23F-FC55-4DA1-8527-EB4432038FB0" }, { "vulnerable": true, "criteria": "cpe:2.3:a:microsoft:office:2021:*:*:*:ltsc:*:x86:*", "matchCriteriaId": "A719B461-7869-46D0-9300-D0A348DC26A5" }, { "vulnerable": true, "criteria": "cpe:2.3:a:microsoft:office_online_server:-:*:*:*:*:*:*:*", "matchCriteriaId": "E98AE986-FA31-4301-8025-E8915BA4AC5E" }, { "vulnerable": true, "criteria": "cpe:2.3:a:microsoft:office_web_apps:2013:sp1:*:*:*:*:*:*", "matchCriteriaId": "B3C3FC9A-D8E5-493A-A575-C831A9A28815" } ] } ] } ], "references": [ { "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-43256", "source": "secure@microsoft.com", "tags": [ "Patch", "Vendor Advisory" ] } ] }