Out of Bounds Write Vulnerability in MediaTek Products
CVE-2026-20428

6.7MEDIUM

Key Information:

Vendor

MediaTek
Status
Mt6739, Mt6761, Mt6765, Mt6768, Mt6781, Mt6789, Mt6833, Mt6835, Mt6853, Mt6855, Mt6877, Mt6878, Mt6879, Mt6883, Mt6885, Mt6886, Mt6889, Mt6893, Mt6895, Mt6897, Mt6899, Mt6983, Mt6985, Mt6989, Mt6991, Mt6993, Mt8196, Mt8678, Mt8793
Vendor
CVE Published:
2 March 2026

What is CVE-2026-20428?

A vulnerability exists in MediaTek chipsets where an out of bounds write can occur due to a missing bounds check in the display functionality. This flaw could allow an attacker with system privileges to escalate their privileges locally. Notably, no user interaction is required for exploitation, making this a significant concern for affected users. A patch has been issued (Patch ID: ALPS10320471) to address this issue.

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Deploy the Patch

Affected Version(s)

MT6739, MT6761, MT6765, MT6768, MT6781, MT6789, MT6833, MT6835, MT6853, MT6855, MT6877, MT6878, MT6879, MT6883, MT6885, MT6886, MT6889, MT6893, MT6895, MT6897, MT6899, MT6983, MT6985, MT6989, MT6991, MT6993, MT8196, MT8678, MT8793 Android 14.0, 15.0, 16.0

References

https://corp.mediatek.com/product-security-bulletin/March...

CVSS V3.1

Score:
6.7
Severity:
MEDIUM
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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