What is the CVSS score of CVE-2021-36924?

CVE-2021-36924 has a CVSS 3.1 base score of 7.8 (High). CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.2%.

Rtsupx Usb Utility Driver CVE-2021-36924

HIGH

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

2021-11-02 cve@mitre.org

RCE Denial Of Service Rtsupx Usb Utility Driver

7.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.8 HIGH

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Nov 02, 2021 - 13:15 nvd

HIGH 7.8

DescriptionNVD

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.

AnalysisAI

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. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified under CWE-367. 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. Affected products include: Realtek Rtsupx Usb Utility Driver. Version information: through 1.14.0.0.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.