CVE-2021-21789
- State
- Published
- Severity
- 8.8 High
- Published
- Jul 7, 2021
- Updated
- Aug 3, 2024
- Reserved
- Jan 4, 2021
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.0 | 8.8 High | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H | talos |
Weaknesses
- CWE-782 Exposed IOCTL with Insufficient Access Control
Affected Products
| Product | Versions |
|---|---|
Iobitn/a |
|
References
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