Medium severity · published Aug 5, 2021
CVE-2021-21792
An information disclosure vulnerability exists in the the way IOBit Advanced SystemCare Ultimate 14.2.0.220 driver handles Privileged I/O read requests
5.5
CVSS
0.3%
EPSS
No
On KEV
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 four bytes from the given I/O device, potentially leaking sensitive device data to unprivileged users.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 27% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AS
Advanced Systemcare Ultimate · Iobit
14.2.0.220 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-21792
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-21792
Exploit
https://talosintelligence.com/vulnerability_reports/TALOS-2021-1255
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