{"api_version":"1","generated_at":"2026-05-05T13:28:13+00:00","cve":"CVE-2021-21792","urls":{"html":"https://cve.report/CVE-2021-21792","api":"https://cve.report/api/cve/CVE-2021-21792.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2021-21792","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-21792"},"summary":{"title":"CVE-2021-21792","description":"An information disclosure vulnerability exists in the the way IOBit Advanced SystemCare Ultimate 14.2.0.220 driver handles Privileged I/O read requests. A specially crafted I/O request packet (IRP) can lead to privileged reads in the context of a driver which can result in sensitive information disclosure from the kernel. The IN instruction can read four bytes from the given I/O device, potentially leaking sensitive device data to unprivileged users.","state":"PUBLIC","assigner":"talos-cna@cisco.com","published_at":"2021-08-05 21:15:00","updated_at":"2022-07-29 14:59:00"},"problem_types":["NVD-CWE-Other"],"metrics":[],"references":[{"url":"https://talosintelligence.com/vulnerability_reports/TALOS-2021-1255","name":"https://talosintelligence.com/vulnerability_reports/TALOS-2021-1255","refsource":"MISC","tags":[],"title":"TALOS-2021-1255 ||  Cisco Talos Intelligence Group - Comprehensive Threat Intelligence","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-21792","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-21792","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2021","cve_id":"21792","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"iobit","cpe5":"advanced_systemcare_ultimate","cpe6":"14.2.0.220","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"data_type":"CVE","data_format":"MITRE","data_version":"4.0","CVE_data_meta":{"ID":"CVE-2021-21792","ASSIGNER":"talos-cna@cisco.com","STATE":"PUBLIC"},"affects":{"vendor":{"vendor_data":[{"vendor_name":"n/a","product":{"product_data":[{"product_name":"IObit","version":{"version_data":[{"version_value":"IOBit Advanced SystemCare Ultimate 14.2.0.220"}]}}]}}]}},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"CWE-782: Exposed IOCTL with Insufficient Access Control"}]}]},"references":{"reference_data":[{"refsource":"MISC","name":"https://talosintelligence.com/vulnerability_reports/TALOS-2021-1255","url":"https://talosintelligence.com/vulnerability_reports/TALOS-2021-1255"}]},"description":{"description_data":[{"lang":"eng","value":"An information disclosure vulnerability exists in the the way IOBit Advanced SystemCare Ultimate 14.2.0.220 driver handles Privileged I/O read requests. A specially crafted I/O request packet (IRP) can lead to privileged reads in the context of a driver which can result in sensitive information disclosure from the kernel. The IN instruction can read four bytes from the given I/O device, potentially leaking sensitive device data to unprivileged users."}]},"impact":{"cvss":{"baseScore":6.5,"baseSeverity":"Medium","vectorString":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N","version":"3.0"}}},"nvd":{"publishedDate":"2021-08-05 21:15:00","lastModifiedDate":"2022-07-29 14:59:00","problem_types":["NVD-CWE-Other"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"NONE","baseScore":5.5,"baseSeverity":"MEDIUM"},"exploitabilityScore":1.8,"impactScore":3.6},"baseMetricV2":{"cvssV2":{"version":"2.0","vectorString":"AV:L/AC:L/Au:N/C:P/I:N/A:N","accessVector":"LOCAL","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"PARTIAL","integrityImpact":"NONE","availabilityImpact":"NONE","baseScore":2.1},"severity":"LOW","exploitabilityScore":3.9,"impactScore":2.9,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}},"configurations":{"CVE_data_version":"4.0","nodes":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:iobit:advanced_systemcare_ultimate:14.2.0.220:*:*:*:*:*:*:*","cpe_name":[]}]}]}},"legacy_mitre":{"record":{"CveYear":"2021","CveId":"21792","Ordinal":"196481","Title":"CVE-2021-21792","CVE":"CVE-2021-21792","Year":"2021"},"notes":[{"CveYear":"2021","CveId":"21792","Ordinal":"1","NoteData":"An information disclosure vulnerability exists in the the way IOBit Advanced SystemCare Ultimate 14.2.0.220 driver handles Privileged I/O read requests. A specially crafted I/O request packet (IRP) can lead to privileged reads in the context of a driver which can result in sensitive information disclosure from the kernel. The IN instruction can read four bytes from the given I/O device, potentially leaking sensitive device data to unprivileged users.","Type":"Description","Title":null},{"CveYear":"2021","CveId":"21792","Ordinal":"2","NoteData":"2021-08-05","Type":"Other","Title":"Published"},{"CveYear":"2021","CveId":"21792","Ordinal":"3","NoteData":"2021-08-05","Type":"Other","Title":"Modified"}]}}}