Out of Bounds Write Vulnerability in Mediatek Charger Software
CVE-2025-20749

6.7MEDIUM

Key Information:

Vendor

MediaTek
Status
Mt6789, Mt6835, Mt6855, Mt6878, Mt6879, Mt6886, Mt6897, Mt6899, Mt6983, Mt6985, Mt6989, Mt6991, Mt8169, Mt8188, Mt8195, Mt8196, Mt8781, Mt8796
Vendor
CVE Published:
4 November 2025

What is CVE-2025-20749?

The charger software developed by Mediatek is susceptible to a serious vulnerability that allows for an out of bounds write due to the absence of proper bounds checking. This flaw can enable a malicious actor, who has already secured system privileges, to escalate their access without needing any user interaction. The implications of this vulnerability are significant, as it could facilitate unauthorized access and control over the system. To address this issue, Mediatek has released a patch identified as ALPS09915493. For more information, please refer to Mediatek's official product security bulletin.

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Affected Version(s)

MT6789, MT6835, MT6855, MT6878, MT6879, MT6886, MT6897, MT6899, MT6983, MT6985, MT6989, MT6991, MT8169, MT8188, MT8195, MT8196, MT8781, MT8796 Android 14.0, 15.0, 16.0

References

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

CVSS V3.1

Score:
6.7
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

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