Out of Bounds Write Vulnerability in MediaTek's PCIe Component
CVE-2026-20417

5.3MEDIUM

Key Information:

Vendor

MediaTek
Status
Mt6991, Mt6993, Mt8678
Vendor
CVE Published:
2 February 2026

What is CVE-2026-20417?

A vulnerability in MediaTek's PCIe component allows for an out of bounds write due to a missing bounds check. This flaw may enable a local attacker to escalate privileges if they have already obtained system privileges. The exploitation of this vulnerability does not require user interaction, raising significant security concerns for affected systems.

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Affected Version(s)

MT6991, MT6993, MT8678 Android 15.0, 16.0

References

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

CVSS V3.1

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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