Memory Corruption Vulnerability in MediaTek Products
CVE-2025-20781

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, Mt8186, Mt8188, Mt8196, Mt8667, Mt8673, Mt8676, Mt8678, Mt8765, Mt8766, Mt8768, Mt8771, Mt8781, Mt8791t, Mt8792, Mt8793, Mt8795t, Mt8796, Mt8798, Mt8873, Mt8883
Vendor
CVE Published:
6 January 2026

What is CVE-2025-20781?

A memory corruption vulnerability has been identified in MediaTek products due to a use-after-free issue. This vulnerability may allow a malicious actor with system privileges to escalate their access without the need for user interaction. Affected users should apply the relevant patches to mitigate potential exploitation 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, MT8186, MT8188, MT8196, MT8667, MT8673, MT8676, MT8678, MT8765, MT8766, MT8768, MT8771, MT8781, MT8791T, MT8792, MT8793, MT8795T, MT8796, MT8798, MT8873, MT8883 Android 14.0, 15.0, 16.0

References

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

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-2025-20781 : Memory Corruption Vulnerability in MediaTek Products