{"identifier":"CVE-2022-24521","cve":{"id":"CVE-2022-24521","description":"Windows Common Log File System Driver Elevation of Privilege Vulnerability","published":"2022-04-15T19:15:11.107000+00:00","modified":"2026-06-17T04:32:02.300000+00:00","status":"Analyzed","score":7.8,"severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cvss_version":"3.1","affected":[{"criteria":"cpe:2.3:o:microsoft:windows_10_1507:*:*:*:*:*:*:*:*","versionStartIncluding":"","versionStartExcluding":"","versionEndIncluding":"","versionEndExcluding":"10.0.10240.19265"},{"criteria":"cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:*:*","versionStartIncluding":"","versionStartExcluding":"","versionEndIncluding":"","versionEndExcluding":"10.0.14393.5066"},{"criteria":"cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:*:*","versionStartIncluding":"","versionStartExcluding":"","versionEndIncluding":"10.0.17763.2803","versionEndExcluding":""},{"criteria":"cpe:2.3:o:microsoft:windows_10_1909:*:*:*:*:*:*:*:*","versionStartIncluding":"","versionStartExcluding":"","versionEndIncluding":"","versionEndExcluding":"10.0.18363.2212"},{"criteria":"cpe:2.3:o:microsoft:windows_10_20h2:*:*:*:*:*:*:*:*","versionStartIncluding":"","versionStartExcluding":"","versionEndIncluding":"","versionEndExcluding":"10.0.19042.1645"},{"criteria":"cpe:2.3:o:microsoft:windows_10_21h1:*:*:*:*:*:*:*:*","versionStartIncluding":"","versionStartExcluding":"","versionEndIncluding":"","versionEndExcluding":"10.0.19043.1645"},{"criteria":"cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:*:*","versionStartIncluding":"","versionStartExcluding":"","versionEndIncluding":"","versionEndExcluding":"10.0.19044.1645"},{"criteria":"cpe:2.3:o:microsoft:windows_11_21h2:*:*:*:*:*:*:*:*","versionStartIncluding":"","versionStartExcluding":"","versionEndIncluding":"","versionEndExcluding":"10.0.22000.613"},{"criteria":"cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:*:*","versionStartIncluding":"","versionStartExcluding":"","versionEndIncluding":"","versionEndExcluding":""},{"criteria":"cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:*:*:*:*","versionStartIncluding":"","versionStartExcluding":"","versionEndIncluding":"","versionEndExcluding":""},{"criteria":"cpe:2.3:o:microsoft:windows_rt_8.1:-:*:*:*:*:*:*:*","versionStartIncluding":"","versionStartExcluding":"","versionEndIncluding":"","versionEndExcluding":""},{"criteria":"cpe:2.3:o:microsoft:windows_server_2008:*:sp2:*:*:*:*:*:*","versionStartIncluding":"","versionStartExcluding":"","versionEndIncluding":"","versionEndExcluding":""},{"criteria":"cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:*","versionStartIncluding":"","versionStartExcluding":"","versionEndIncluding":"","versionEndExcluding":""},{"criteria":"cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*","versionStartIncluding":"","versionStartExcluding":"","versionEndIncluding":"","versionEndExcluding":""},{"criteria":"cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*","versionStartIncluding":"","versionStartExcluding":"","versionEndIncluding":"","versionEndExcluding":""},{"criteria":"cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*","versionStartIncluding":"","versionStartExcluding":"","versionEndIncluding":"","versionEndExcluding":"10.0.14393.5066"},{"criteria":"cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*","versionStartIncluding":"","versionStartExcluding":"","versionEndIncluding":"","versionEndExcluding":"10.0.17763.2803"},{"criteria":"cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*","versionStartIncluding":"","versionStartExcluding":"","versionEndIncluding":"","versionEndExcluding":"10.0.20348.643"},{"criteria":"cpe:2.3:o:microsoft:windows_server_20h2:*:*:*:*:*:*:*:*","versionStartIncluding":"","versionStartExcluding":"","versionEndIncluding":"","versionEndExcluding":"10.0.19042.1645"}],"weaknesses":["CWE-787","NVD-CWE-noinfo"],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-24521","source":"secure@microsoft.com","tags":["Patch","Vendor Advisory"]},{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-24521","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch","Vendor Advisory"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-24521","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","tags":["US Government Resource"]}],"kev":{"cveID":"CVE-2022-24521","vendorProject":"Microsoft","product":"Windows","vulnerabilityName":"Microsoft Windows CLFS Driver Privilege Escalation Vulnerability","dateAdded":"2022-04-13","shortDescription":"Microsoft Windows Common Log File System (CLFS) Driver contains an unspecified vulnerability that allows for privilege escalation.","requiredAction":"Apply updates per vendor instructions.","dueDate":"2022-05-04","knownRansomwareCampaignUse":"Known","forensicTriage":"No","notes":"https://nvd.nist.gov/vuln/detail/CVE-2022-24521","cwes":["CWE-787","CWE-1285"]},"kev_checked":true,"metrics":{"cvssMetricV31":[{"source":"secure@microsoft.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","baseScore":7.8,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":5.9}],"cvssMetricV2":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"2.0","vectorString":"AV:L/AC:L/Au:N/C:P/I:P/A:P","baseScore":4.6,"accessVector":"LOCAL","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"PARTIAL","integrityImpact":"PARTIAL","availabilityImpact":"PARTIAL"},"baseSeverity":"MEDIUM","exploitabilityScore":3.9,"impactScore":6.4,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2025-02-04T14:19:02.892487Z","id":"CVE-2022-24521","options":[{"exploitation":"active"},{"automatable":"no"},{"technicalImpact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:microsoft:windows_10_1507:*:*:*:*:*:*:*:*","versionEndExcluding":"10.0.10240.19265","matchCriteriaId":"80835FAD-93BC-4412-82B5-6F94319BD56A"},{"vulnerable":true,"criteria":"cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:*:*","versionEndExcluding":"10.0.14393.5066","matchCriteriaId":"64FB64EC-4AB3-422B-8887-19C1355BF4AE"},{"vulnerable":true,"criteria":"cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:*:*","versionEndIncluding":"10.0.17763.2803","matchCriteriaId":"AACAF7EE-E72A-4BEF-BCD5-57BCF525E9CA"},{"vulnerable":true,"criteria":"cpe:2.3:o:microsoft:windows_10_1909:*:*:*:*:*:*:*:*","versionEndExcluding":"10.0.18363.2212","matchCriteriaId":"89E25B03-5C50-4F9E-B32C-620DB02B9A64"},{"vulnerable":true,"criteria":"cpe:2.3:o:microsoft:windows_10_20h2:*:*:*:*:*:*:*:*","versionEndExcluding":"10.0.19042.1645","matchCriteriaId":"D88AC965-D7C9-40C1-91FA-5A59AB51B1B0"},{"vulnerable":true,"criteria":"cpe:2.3:o:microsoft:windows_10_21h1:*:*:*:*:*:*:*:*","versionEndExcluding":"10.0.19043.1645","matchCriteriaId":"5991C983-14B9-43C4-8A21-86BDAD59D4CB"},{"vulnerable":true,"criteria":"cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:*:*","versionEndExcluding":"10.0.19044.1645","matchCriteriaId":"DDB6F5DD-3AF4-4032-A47F-008F6654B0B7"},{"vulnerable":true,"criteria":"cpe:2.3:o:microsoft:windows_11_21h2:*:*:*:*:*:*:*:*","versionEndExcluding":"10.0.22000.613","matchCriteriaId":"1F134A85-E9BA-4DB5-AE3B-B7C50FE1D828"},{"vulnerable":true,"criteria":"cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:*:*","matchCriteriaId":"C2B1C231-DE19-4B8F-A4AA-5B3A65276E46"},{"vulnerable":true,"criteria":"cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:*:*:*:*","matchCriteriaId":"E93068DB-549B-45AB-8E5C-00EB5D8B5CF8"},{"vulnerable":true,"criteria":"cpe:2.3:o:microsoft:windows_rt_8.1:-:*:*:*:*:*:*:*","matchCriteriaId":"C6CE5198-C498-4672-AF4C-77AB4BE06C5C"},{"vulnerable":true,"criteria":"cpe:2.3:o:microsoft:windows_server_2008:*:sp2:*:*:*:*:*:*","matchCriteriaId":"0C28897B-044A-447B-AD76-6397F8190177"},{"vulnerable":true,"criteria":"cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:*","matchCriteriaId":"AF07A81D-12E5-4B1D-BFF9-C8D08C32FF4F"},{"vulnerable":true,"criteria":"cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*","matchCriteriaId":"A7DF96F8-BA6A-4780-9CA3-F719B3F81074"},{"vulnerable":true,"criteria":"cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*","matchCriteriaId":"DB18C4CE-5917-401E-ACF7-2747084FD36E"},{"vulnerable":true,"criteria":"cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*","versionEndExcluding":"10.0.14393.5066","matchCriteriaId":"41F352C2-5CFE-44C9-BD95-CE675C758065"},{"vulnerable":true,"criteria":"cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*","versionEndExcluding":"10.0.17763.2803","matchCriteriaId":"14299175-DC1B-482E-AB7F-017B0563FF15"},{"vulnerable":true,"criteria":"cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*","versionEndExcluding":"10.0.20348.643","matchCriteriaId":"60A428F7-0772-4E67-9DCE-59BD41C0A9C9"},{"vulnerable":true,"criteria":"cpe:2.3:o:microsoft:windows_server_20h2:*:*:*:*:*:*:*:*","versionEndExcluding":"10.0.19042.1645","matchCriteriaId":"99EDE32C-E0DB-4AC2-A4B0-04267C362FE9"}]}]}],"source":"nvd","retrieved_at":"2026-10-28T16:19:11.969975+00:00","exploited":true,"kev_stale":false,"products":["microsoft / windows 10 1507","microsoft / windows 10 1607","microsoft / windows 10 1809","microsoft / windows 10 1909"],"priority":{"label":"Known exploitation: prioritize review","reasons":["CISA KEV lists real-world exploitation."]},"epss":{"probability":0.07134,"percentile":0.9424,"date":"2026-10-28","stale":false},"version_assessment":null},"news":[],"campaigns":[],"domains":[{"domain":"msrc.microsoft.com","source_url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-24521","investigate_url":"https://investigate.aeglixmind.com/#msrc.microsoft.com"},{"domain":"www.cisa.gov","source_url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-24521","investigate_url":"https://investigate.aeglixmind.com/#www.cisa.gov"}],"arsenal_url":"https://arsenal.aeglixmind.com/?cve=CVE-2022-24521","catalog_url":"https://cves.aeglixmind.com/cve/CVE-2022-24521","research_url":"https://investigate.aeglixmind.com/research/cve/CVE-2022-24521","coverage":{"news_candidates_checked":0,"campaign_candidates_checked":0,"bounded":false,"notice":"Exact CVE mentions in stored public excerpts and reviewed campaign content only. A mention is not proof of exploitation, attribution or tool suitability. Missing matches do not establish absence."}}