Local Privilege Escalation in Lenovo Consumer Notebooks
CVE-2022-3744

6.7MEDIUM

Key Information:

Vendor
Lenovo
Status
Notebook
Vendor
CVE Published:
23 August 2023

Summary

A vulnerability has been identified in the LCFC BIOS used by certain Lenovo consumer notebook models, allowing local attackers with elevated privileges to potentially unlock UEFI variables. This is made possible by a hard-coded SMI handler credential, which may be exploited to gain unauthorized access to sensitive firmware settings.

Affected Version(s)

Notebook various

References

https://support.lenovo.com/us/en/product_security/LEN-103710

CVSS V3.1

Score:
6.7
Severity:
MEDIUM
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.