Out of Bounds Write Vulnerability in MediaTek PCIe Products
CVE-2026-20416

7.2HIGH

Key Information:

Vendor

MediaTek
Status
Mediatek Chipset
Vendor
CVE Published:
2 March 2026

What is CVE-2026-20416?

A vulnerability exists in MediaTek's PCIe products due to a missing bounds check, leading to potential out of bounds write scenarios. This flaw could allow a malicious actor, who has already secured system privilege, to escalate their access without requiring user interaction. Immediate patching is recommended to mitigate risks associated with this vulnerability as detailed in the product security bulletin.

Affected Version(s)

MediaTek chipset MT6991

MediaTek chipset MT6993

MediaTek chipset MT8188

References

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

CVSS V3.1

Score:
7.2
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.