VULNERABILITY INTELLIGENCE

CVE-2021-21786

CVSS score7.8 HIGH
EPSS probability0.29%
CISA KEVNot currently listed
Published2021-07-07
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Description

A privilege escalation vulnerability exists in the IOCTL 0x9c406144 handling of IOBit Advanced SystemCare Ultimate 14.2.0.220. A specially crafted I/O request packet (IRP) can lead to increased privileges. An attacker can send a malicious IRP to trigger this vulnerability.

Weakness classification

  • talos-cna@cisco.com: CWE-782
  • nvd@nist.gov: CWE-269

Primary references