Out of Bounds Write Vulnerability in MediaTek GNSS Driver
CVE-2025-20723

7.8HIGH

Key Information:

Vendor

MediaTek
Status
Mt6835, Mt6878, Mt6886, Mt6897, Mt6899, Mt6985, Mt6989, Mt6991, Mt8676, Mt8678, Mt8775, Mt8791t, Mt8796, Mt8873
Vendor
CVE Published:
14 October 2025

What is CVE-2025-20723?

In the MediaTek GNSS driver, an out of bounds write vulnerability arises from an improper bounds check, potentially allowing a local attacker with system privileges to escalate their access. Exploitation does not require user interaction, making the vulnerability particularly concerning. Users of affected versions are advised to apply the security patch (Patch ID: ALPS09920033) promptly to mitigate risks.

Affected Version(s)

MT6835, MT6878, MT6886, MT6897, MT6899, MT6985, MT6989, MT6991, MT8676, MT8678, MT8775, MT8791T, MT8796, MT8873 Android 14.0, 15.0

References

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

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-2025-20723 : Out of Bounds Write Vulnerability in MediaTek GNSS Driver