CVE-2026-20478 — MediaTek, Inc. / MediaTek chipset

CVE-2026-20478

MediaTek, Inc. / MediaTek chipset PUBLISHED

Description (CNA)

In Audio HAL, there is a possible out of bounds write due to a heap buffer overflow. This could lead to local denial of service with User execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS10981454 (Note: For MT6880, MT6890, MT6988, MT6990) / AUTO00851293 (Note: For MT2735, MT2737); Issue ID: MSV-7638.

Affected (CNA)

Vendor / product	Versions
MediaTek, Inc. / MediaTek chipset	affected MT2735; affected MT2737; affected MT6880; affected MT6890; affected MT6988; affected MT6990

CWE

CWE-787

References

https://www.mediatek.com/product-security-bulletin/August-2026

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.