{"id":"CVE-2021-21790","aliases":["EUVD-2021-8962","GHSA-7qwq-qrqh-hx2m"],"status":"published","title":"An information disclosure vulnerability exists in the the way IOBit Advanced SystemCare Ultimate...","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 two bytes from the given I/O device, potentially leaking sensitive device data to unprivileged users.","severity":{"version":"3.0","score":6.5,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00336,"percentile":0.27213,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-782"],"published":"2021-08-05T20:04:59Z","modified":"2026-06-17T03:36:07Z","products":[{"vendor":"iobit","product":"advanced_systemcare_ultimate"}],"references":[{"url":"https://talosintelligence.com/vulnerability_reports/TALOS-2021-1255","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-21790"},{"url":"https://github.com/advisories/GHSA-7qwq-qrqh-hx2m"}],"sources":{"cve":[{"id":"CVE-2021-21790","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 two bytes from the given I/O device, potentially leaking sensitive device data to unprivileged users.","status":"published","published":"2021-08-05T20:04:59Z","modified":"2024-08-03T18:23:29.411Z","cvss":[{"version":"3.0","score":6.5,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-782"],"updated_at":"2026-11-02T14:33:00.488332Z"}],"euvd":[{"id":"EUVD-2021-8962","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 two bytes from the given I/O device, potentially leaking sensitive device data to unprivileged users.","status":"published","published":"2021-08-05T20:04:59Z","modified":"2024-08-03T18:23:29Z","cvss":[{"version":"3.0","score":6.5,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-03T03:25:05.131984Z"}],"ghsa":[{"id":"GHSA-7qwq-qrqh-hx2m","title":"An information disclosure vulnerability exists in the the way IOBit Advanced SystemCare Ultimate...","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 two bytes from the given I/O device, potentially leaking sensitive device data to unprivileged users.","status":"published","published":"2022-05-24T19:10:08Z","modified":"2023-01-30T05:01:15Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T14:46:22.480874Z"}],"nvd":[{"id":"CVE-2021-21790","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 two bytes from the given I/O device, potentially leaking sensitive device data to unprivileged users.","status":"published","published":"2021-08-05T21:15:10.55Z","modified":"2026-06-17T03:36:07.327Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary"},{"version":"3.0","score":6.5,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N","level":"medium","assessor":"secondary"},{"version":"2.0","score":2.1,"vector":"AV:L/AC:L/Au:N/C:P/I:N/A:N","level":"low","assessor":"primary"}],"cwes":["CWE-782"],"updated_at":"2026-11-02T14:06:56.562207Z"}]}}