Input Validation Flaw in BIOS of ThinkPad Laptops by Lenovo
CVE-2022-4574

6.7MEDIUM

Key Information:

Vendor

Lenovo
Status
Thinkpad BiOS
Vendor
CVE Published:
30 October 2023

What is CVE-2022-4574?

An input validation flaw in the SMI handler of the BIOS present in specific Lenovo ThinkPad models may permit an attacker with local access and elevated privileges to execute arbitrary code. This vulnerability could potentially compromise system integrity and allow unauthorized actions by exploiting the SMI handler.

Affected Version(s)

ThinkPad BIOS various

References

https://support.lenovo.com/us/en/product_security/LEN-106014

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

Credit

Lenovo thanks Yngweijw for reporting this issue.
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