Executive brief
MediaTek chipsets contain a display driver vulnerability that can leak sensitive system information to a local attacker who already has elevated system privileges. While exploitation requires existing administrative access, the integer overflow flaw could allow unauthorized memory access and data exposure, potentially compromising confidential device information.
Technical details
The vulnerability is an integer overflow flaw in the display subsystem of MediaTek chipsets that leads to information disclosure. The root cause lies in improper bounds checking during integer arithmetic operations in the display driver, allowing an attacker to read out-of-bounds memory. Exploitation requires the attacker to already possess system-level privileges (no user interaction needed), and can be achieved through local attack vectors only. A successful exploit allows reading of sensitive kernel or system memory that would normally be protected, potentially exposing cryptographic keys, credentials, or other confidential data. Patches are available via ALPS11004274.
Affected products
- MediaTek Chipset Display Driver <UNKNOWN>
Timeline
- 2026-08-03: disclosed
- 2026-08-03: patched: Patch ID ALPS11004274 issued; Device OEMs notified at least 2 months prior