MediaTek APU Double-Free Crash Leading to DOS
CVE-2026-20532 Published on October 5, 2026
In apu, there is a possible application crash due to double free. This could lead to local denial of service with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS11249024; Issue ID: MSV-9168.
Vulnerability Analysis
CVE-2026-20532 is exploitable with local system access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity, and a high impact on availability.
Weakness Type
What is a Double-free Vulnerability?
The product calls free() twice on the same memory address, potentially leading to modification of unexpected memory locations. When a program calls free() twice with the same argument, the program's memory management data structures become corrupted. This corruption can cause the program to crash or, in some circumstances, cause two later calls to malloc() to return the same pointer. If malloc() returns the same value twice and the program later gives the attacker control over the data that is written into this doubly-allocated memory, the program becomes vulnerable to a buffer overflow attack.
CVE-2026-20532 has been classified to as a Double-free vulnerability or weakness.
Affected Versions
MediaTek, Inc. MediaTek chipset:- Version MT6899 is affected.
- Version MT6993 is affected.
- Version MT8668 is affected.
- Version MT8781 is affected.
- Version MT8910 is affected.