CVE-2026-4145

7.8

Lenovo · Software Fix

A local authenticated user can achieve arbitrary code execution with elevated privileges in Lenovo Software Fix due to improper neutralization of argument delimiters.

Executive summary

A vulnerability in Lenovo Software Fix allows a local authenticated user to escalate privileges and execute arbitrary code, posing a significant risk to system integrity.

Vulnerability

The flaw is an argument injection vulnerability (CWE-88) occurring within the application, which enables a local user who has already authenticated to the system to execute commands with higher privileges than intended.

Business impact

Successful exploitation of this vulnerability permits a local attacker to gain elevated system privileges, which can lead to complete compromise of the affected machine. Given the CVSS score of 7.8, this high-severity flaw threatens data confidentiality and system availability, potentially allowing an attacker to install malware or pivot to other network resources.

Remediation

Immediate Action: Update Lenovo Software Fix to version 7.5.5.19 or later as provided in the vendor security advisory.

Proactive Monitoring: Review local system logs and audit trails for unexpected process execution or unauthorized attempts to access administrative functions.

Compensating Controls: Implement strict principle of least privilege policies to ensure that standard user accounts lack unnecessary permissions that could be leveraged during an exploit attempt.

Exploitation status

Public Exploit Available: Unknown

Analyst recommendation

This vulnerability presents a clear path for privilege escalation within the Lenovo Software Fix environment. Organizations should prioritize updating all instances of the affected software to version 7.5.5.19 or later to remediate the underlying command injection flaw and prevent potential unauthorized system-level operations.

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