What is CVE-2021-36924?

CVE-2021-36924 is a high-severity vulnerability in Realtek Rtsupx Usb Utility Driver, classified under Time-of-check Time-of-use (TOCTOU) Race Condition. CVSS score: 7.8/10. Published 2021-11-02.

How severe is CVE-2021-36924?

High severity. CVSS v3 base score is 7.8 out of 10.

Vulnerability in Realtek Rtsupx Usb Utility Driver

CVE-2021-36924

RtsUpx.sys in Realtek RtsUpx USB Utility Driver for Camera/Hub/Audio through 1.14.0.0 allows local low-privileged users to achieve a pool overflow (leading to Escalation of Privileges, Denial of Service, and Code Execution) via a crafted Device IO Control packet to a device.

Vulnerability class: TOCTOU (Time-of-Check to Time-of-Use)

EPSS: 0.002 (10.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Realtek Rtsupx_usb_utility_driver
N/a — versions n/a

Weakness classification (CWE)

CWE-367 — Time-of-check Time-of-use (TOCTOU) Race Condition

References

cve@mitre.org (x_refsource_MISC, Not Applicable)
cve@mitre.org (x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2021-36924?: CVE-2021-36924 is a high-severity vulnerability in Realtek Rtsupx Usb Utility Driver, classified under Time-of-check Time-of-use (TOCTOU) Race Condition. CVSS score: 7.8/10. Published 2021-11-02.
How severe is CVE-2021-36924?: High severity. CVSS v3 base score is 7.8 out of 10.