High severity · published Nov 2, 2021
CVE-2021-36923
RtsUpx.sys in Realtek RtsUpx USB Utility Driver for Camera/Hub/Audio through 1.14.0.0 allows local low-privileged users to achieve unauthorized access to USB device privileged IN…
7.8
CVSS
0.3%
EPSS
No
On KEV
Description
RtsUpx.sys in Realtek RtsUpx USB Utility Driver for Camera/Hub/Audio through 1.14.0.0 allows local low-privileged users to achieve unauthorized access to USB device privileged IN and OUT instructions (leading to Escalation of Privileges, Denial of Service, Code Execution, and Information Disclosure) via a crafted Device IO Control packet to a device.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 20% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
RU
Rtsupx Usb Utility Driver · Realtek
through 1.14.0.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-36923
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-36923
Vendor Advisory
https://www.realtek.com/images/safe-report/Realtek_RtsUpx_Security_Advisory_Report.pdf
Not Applicable
https://www.sentinelone.com/resources/category/report/
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