Vulnerability Details : CVE-2021-21790
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.
Vulnerability category: Information leak
Products affected by CVE-2021-21790
- cpe:2.3:a:iobit:advanced_systemcare_ultimate:14.2.0.220:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-21790
0.05%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 15 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-21790
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
2.1
|
LOW | AV:L/AC:L/Au:N/C:P/I:N/A:N |
3.9
|
2.9
|
NIST | |
|
6.5
|
MEDIUM | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N |
2.0
|
4.0
|
Talos | |
|
5.5
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
1.8
|
3.6
|
NIST |
CWE ids for CVE-2021-21790
-
The product implements an IOCTL with functionality that should be restricted, but it does not properly enforce access control for the IOCTL.Assigned by: talos-cna@cisco.com (Secondary)
References for CVE-2021-21790
-
https://talosintelligence.com/vulnerability_reports/TALOS-2021-1255
TALOS-2021-1255 || Cisco Talos Intelligence Group - Comprehensive Threat IntelligenceExploit;Third Party Advisory
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