Memory Leakage Vulnerability in Lenovo 534D0740 DXE Driver
CVE-2023-45077

6.7MEDIUM

Key Information:

Vendor
Lenovo
Status
BiOS
Vendor
CVE Published:
8 November 2023

Summary

A vulnerability has been identified in the Lenovo 534D0740 DXE driver, characterized by memory leakage. This flaw could enable a local attacker with elevated privileges to gain unauthorized access to NVRAM variables. Exploiting this vulnerability may lead to potential manipulation of sensitive system settings and compromise system integrity.

Affected Version(s)

BIOS various

References

https://support.lenovo.com/us/en/product_security/LEN-141775

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 Souhardya Sardar of Cyberstanc for reporting this issue.
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