SB2025090131 - Multiple vulnerabilities in MediaTek chipsets



SB2025090131 - Multiple vulnerabilities in MediaTek chipsets

Published: September 1, 2025

Security Bulletin ID SB2025090131
Severity
High
Patch available
YES
Number of vulnerabilities 6
Exploitation vector Adjecent network
Highest impact Code execution

Breakdown by Severity

High 33% Medium 17% Low 50%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 6 secuirty vulnerabilities.


1) Out-of-bounds write (CVE-ID: CVE-2025-20708)

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error when processing untrusted input within the Modem component. A remote attacker with control over a rogue base station can send specially crafted packets to the device, trigger an out-of-bounds write and execute arbitrary code on the target system.


2) Out-of-bounds read (CVE-ID: CVE-2025-20703)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary condition within the Modem component. A remote attacker with control over a rogue base station can send specially crafted packets to trigger an out-of-bounds read error and perform a denial of service (DoS) attack.


3) Out-of-bounds write (CVE-ID: CVE-2025-20704)

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error when processing untrusted input within the Modem component. A remote attacker with control over a rogue base station can trigger an out-of-bounds write and execute arbitrary code on the target system.


4) Use-after-free (CVE-ID: CVE-2025-20705)

The vulnerability allows a local application to escalate privileges on the system.

The vulnerability exists due to a use-after-free error in monitor_hang. A local application can execute arbitrary code with System privileges. 


5) Use-after-free (CVE-ID: CVE-2025-20706)

The vulnerability allows a local application to escalate privileges on the system.

The vulnerability exists due to a use-after-free error in mbrain. A local application can execute arbitrary code with elevated privileges. 


6) Use-after-free (CVE-ID: CVE-2025-20707)

The vulnerability allows a local application to escalate privileges on the system.

The vulnerability exists due to a use-after-free error in geniezone. A local application can execute arbitrary code with elevated privileges. 


Remediation

Install update from vendor's website.