Out of Bounds Write Vulnerability in MediaTek Products
CVE-2026-20475

6MEDIUM

Key Information:

Vendor

MediaTek
Status
Mediatek Chipset
Vendor
CVE Published:
3 August 2026

What is CVE-2026-20475?

A vulnerability exists in MediaTek products where a missing bounds check allows for a possible out of bounds write. This flaw could enable local escalation of privilege for an attacker who already has System privileges. Importantly, user interaction is not required for successful exploitation of this vulnerability. The issue has been documented as Patch ID: ALPS11004276 and Issue ID: MSV-7748, and it's critical for users to apply the necessary patches to safeguard their systems.

Affected Version(s)

MediaTek chipset MT6991

MediaTek chipset MT6993

MediaTek chipset MT8126

References

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

CVSS V3.1

Score:
6
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

.