CVE-2026-20477 — MediaTek, Inc. / MediaTek chipset

Description (CNA)

In display, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS11009963; Issue ID: MSV-7658.

Affected (CNA)

Vendor / product	Versions
MediaTek, Inc. / MediaTek chipset	affected MT6991; affected MT6993; affected MT8188; affected MT8189; affected MT8668; affected MT8676; affected MT8678; affected MT8781; affected MT8799; affected MT8910

CWE

CWE-787

References

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

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.