CVE-2025-20784 MediaTek, Inc. CVE debrief

Who should care

Android device administrators, security teams, and users of Mediatek devices should assess exposure and apply patches to prevent potential privilege escalation attacks. This includes reviewing device configurations for potential vulnerabilities and monitoring for System privilege escalation attempts.

Why it matters

CVE-2025-20784 is a local privilege escalation vulnerability in Mediatek devices that requires System privileges to exploit. Android device administrators and security teams should assess exposure and apply patches to prevent potential attacks.

• Assess exposure of Mediatek devices in your inventory to prevent potential privilege escalation attacks
• Apply patches from Mediatek's January 2026 security bulletin to prevent exploitation
• Monitor for System privilege escalation attempts to detect potential attacks
• Review device configurations for potential vulnerabilities to prevent exploitation

Technical summary

CVE-2025-20784 is a local privilege escalation vulnerability in the display component of Mediatek devices. An attacker with System privileges can exploit this vulnerability to gain elevated privileges. The vulnerability has a CVSS score of 6.7 and is classified as MEDIUM severity. This vulnerability requires System privileges to exploit and affects Mediatek devices. Android device administrators and security teams should assess exposure and apply patches to prevent potential attacks. The CVE record and NVD detail page provide information on the vulnerability, including its description, CVSS score, and affected products.

Defensive priority

Medium priority for Android device administrators and security teams to assess exposure and apply patches.

Recommended defensive actions

• Assess exposure of Mediatek devices in your inventory
• Apply patches from Mediatek's January 2026 security bulletin
• Monitor for System privilege escalation attempts
• Review device configurations for potential vulnerabilities
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
• Review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance
• Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed

Evidence notes

The CVE record and NVD detail page provide information on the vulnerability, including its description, CVSS score, and affected products. Mediatek's security bulletin for January 2026 also provides additional context.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.