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MediaTek Modem Out-of-Bounds Write Vulnerability Leading to Remote Denial-of-Service

Vulnerability

An out-of-bounds write vulnerability has been identified in the Modem component of certain MediaTek chipsets. This vulnerability arises from a missing bounds check, which can lead to a system crash. The issue could be exploited remotely if a user equipment (UE) device is connected to a rogue base station controlled by an attacker. Notably, no additional execution privileges are required for exploitation, and user interaction is not needed.

Impact

Exploitation of this vulnerability can cause a system crash, leading to a denial-of-service condition on the affected device.

Remediation

MediaTek has issued a patch for this vulnerability, which can be applied by device manufacturers. Instructions for applying the patch are available through MediaTek's official channels.

Added: Dec 2, 2025, 3:46 AM
Updated: Dec 2, 2025, 3:46 AM

Vulnerability Rating

Custom Algorithm
spread
7.8
impact
2.5
exploitability
4.7
remediation
0.0
relevance
1.3
threat
0.0
urgency
2.9
incentive
0.8

Our algorithm analyzes dozens of metrics to generate these 8 key vulnerability categories, which are then combined to calculate the overall risk score.