CVE-2021-21789CWE-782
A privilege escalation vulnerability exists in the way IOBit Advanced SystemCare Ultimate 14.2.0.220 driver handles Privileged I/O write requests
High · published July 7, 2021
What it is
A privilege escalation vulnerability exists in the way IOBit Advanced SystemCare Ultimate 14.2.0.220 driver handles Privileged I/O write requests. During IOCTL 0x9c40a0e0, the first dword passed in the input buffer is the device port to write to and the dword at offset 4 is the value to write via the OUT instruction. A local attacker can send a malicious IRP to trigger this vulnerability.
The record
Technical detail
- CVSS v3.0
- 8.8 · HIGH
- Vector
- CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
- CVSS v4.0
- Not supplied
- EPSS
- 0.00321 · 23.9th percentile
- Weakness
- CWE-782 · Exposed IOCTL with Insufficient Access Control
- Published
- 2021-07-07T16:40Z
EPSS history
Timeline