Main Vulnerability Database Vulnerabilities #VU60285

#VU60285 Permissions, Privileges, and Access Controls in UsbCoreDxe - CVE-2021-43323

Published: February 3, 2022

Vulnerability identifier: #VU60285

Vulnerability risk: High

CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber

CVE-ID: CVE-2021-43323

CWE-ID: CWE-264

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vulnerable software:
UsbCoreDxe

Software vendor:
Insyde Software

Description

The vulnerability allows a remote attacker to escalate privileges on the system.

The vulnerability exists due to the SMM callout issue. A remote attacker can hijack execution flow of a code running in System Management Mode and escalate privileges.

Remediation

Install updates from vendor's website.

External links

https://www.insyde.com/security-pledge