CVE-2026-4134

7.3

Lenovo · Software Fix

Lenovo Software Fix contains an uncontrolled search path element vulnerability that allows a local authenticated user to execute code with elevated privileges during the installation process.

Executive summary

A local privilege escalation vulnerability in Lenovo Software Fix could allow authenticated users to execute arbitrary code with elevated permissions.

Vulnerability

This vulnerability is caused by an uncontrolled search path element (CWE-427), which allows a local attacker who has already authenticated to the system to manipulate the installation process and achieve elevated execution privileges.

Business impact

The ability for a local user to escalate privileges poses a significant risk to system integrity and confidentiality. With a CVSS score of 7.3, this flaw is categorized as High severity, as it facilitates unauthorized control over the affected machine, potentially leading to total system compromise if the attacker gains administrative access.

Remediation

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

Proactive Monitoring: Monitor system logs for unusual installation activity or processes executing from unexpected directories during software updates.

Compensating Controls: Ensure that standard users have restricted permissions on the local machine to prevent unauthorized modification of search paths or execution of installer binaries.

Exploitation status

Public Exploit Available: Unknown

Analyst recommendation

Given the potential for privilege escalation and the high severity score, administrators should prioritize updating Lenovo Software Fix across all managed endpoints. Applying the patch to version 7.5.5.19 is the only effective way to remediate the uncontrolled search path vulnerability and prevent local attackers from gaining unauthorized administrative control.

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Sources