Executive brief
MediaTek's CCCI (Cross-Core Communication Interface) component, used in mobile chipsets and IoT devices, contains a memory access vulnerability that could cause the device to crash or become unresponsive. An attacker with system-level privileges could trigger this denial-of-service condition without needing user interaction, potentially disrupting critical device operations or services running on affected hardware.
Technical details
The vulnerability is an out-of-bounds read in the CCCI subcomponent caused by missing bounds checking. The attack vector is local with a precondition of requiring attacker possession of System (kernel) privilege level. When triggered, the out-of-bounds memory access can cause a local denial of service. The exact affected chipsets and product lines are not explicitly detailed in the provided reference, though the advisory indicates MediaTek smartphone, IoT, and networking products using the affected CCCI code path. MediaTek has issued Patch ID ALPS10981501 to address this issue (Issue ID MSV-7669).
Affected products
- MediaTek CCCI Unspecified
Timeline
- 2026-08-03: disclosed
- 2026-08-03: advisory: MediaTek Product Security Bulletin August 2026