Out of Bounds Write Vulnerability in MediaTek's SMI Component
CVE-2025-20764

7.8HIGH

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, Mt8196, Mt8676, Mt8678, Mt8792, Mt8793, Mt8796, Mt8873, Mt8893
Vendor
CVE Published:
2 December 2025

What is CVE-2025-20764?

The SMI component of MediaTek is susceptible to an out of bounds write vulnerability stemming from an insufficient bounds check. This flaw may enable an attacker with System privilege to execute malicious actions, facilitating local privilege escalation without requiring user interaction. Affected installations should apply the necessary patches to mitigate potential risks.

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, MT8196, MT8676, MT8678, MT8792, MT8793, MT8796, MT8873, MT8893 Android 14.0, 15.0, 16.0

References

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

CVSS V3.1

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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CVE-2025-20764 : Out of Bounds Write Vulnerability in MediaTek's SMI Component