CVE-2025-20779

7.0

MediaTek · MediaTek Chipset

A race condition in the MediaTek display driver leads to a use after free vulnerability, potentially allowing for local privilege escalation.

Executive summary

A use after free vulnerability in the MediaTek display driver can allow a privileged local attacker to achieve system level escalation of privilege.

Vulnerability

This vulnerability is a use after free flaw triggered by a race condition within the display component. Exploitation requires an attacker to possess local system privileges to escalate their access further, though no user interaction is required.

Business impact

The vulnerability carries a CVSS score of 7.0, indicating high severity due to the potential for total system compromise. Successful exploitation allows a local user to gain elevated privileges, which could lead to unauthorized data access, complete system control, and the potential for persistent malware installation on affected mobile or embedded devices.

Remediation

Immediate Action: Organizations must obtain and apply the official security updates provided by the device manufacturer or MediaTek, specifically referencing Patch ID ALPS10184084.

Proactive Monitoring: Security teams should monitor system logs for unusual process crashes or kernel errors that may indicate failed attempts to trigger race conditions.

Compensating Controls: Ensure that device level security policies restrict the ability of unauthorized local applications to execute code with elevated permissions.

Exploitation status

Public Exploit Available: No (exploit_available: false)

Analyst recommendation

Given the high impact of this privilege escalation vulnerability, it is imperative that manufacturers and users prioritize the application of the vendor provided security patch. Although local exploitation is required, the risk to system integrity is substantial, necessitating prompt remediation to prevent unauthorized privilege escalation.

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