CVE-2025-20804 MediaTek, Inc. CVE debrief

Who should care

Defenders of Mediatek devices with System privilege access should assess exposure and apply patches from official Mediatek sources. This includes verifying affected versions and configurations, assessing exposure of devices with System privilege access, and applying patches. Security teams and vulnerability management teams should prioritize remediation based on the MEDIUM severity and potential impact on affected systems.

Why it matters

CVE-2025-20804 is a memory corruption vulnerability in Mediatek devices that could lead to local escalation of privilege. Defenders of Mediatek devices with System privilege access should assess exposure and apply patches.

• Verify affected Mediatek devices and configurations
• Assess exposure of devices with System privilege access
• Apply patches from Mediatek's official sources

Technical summary

The dpe component of Mediatek devices has a memory corruption vulnerability due to use after free. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is needed for exploitation. The vulnerability has a CVSS score of 6.7 and is classified as MEDIUM severity. Defenders should assess exposure and apply patches from official Mediatek sources. The CVE record and NVD entry provide details on the vulnerability, but affected versions and remediation require verification from Mediatek's official sources.

Defensive priority

Assess exposure and apply patches for Mediatek devices with System privilege access.

Recommended defensive actions

• Assess exposure of Mediatek devices with System privilege access
• Apply patches from Mediatek's official sources
• Verify affected versions and configurations
• 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
• Review compensating controls for exposed systems while remediation is scheduled and verified

Evidence notes

The CVE record and NVD entry provide details on the vulnerability, but affected versions and remediation require verification from Mediatek's official sources. Defenders should verify affected Mediatek devices and configurations, assess exposure of devices with System privilege access, and apply patches from Mediatek's official sources. The vulnerability has a CVSS score of 6.7 and is classified as MEDIUM severity.

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.