CVE-2026-20535: MediaTek MT6878 Firmware

Medium severity, CVSS 6.7. EPSS: 0.1% chance of exploitation in the next 30 days.

In aidl, there is a possible escalation of privilege due to a missing permission check. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS11185216; Issue ID: MSV-9039.

Affected products

• MediaTek MT6878 Firmware: affected versions not specified
• MediaTek MT6881 Firmware: affected versions not specified
• MediaTek MT6899 Firmware: affected versions not specified
• MediaTek MT6989 Firmware: affected versions not specified
• MediaTek MT6991 Firmware: affected versions not specified
• MediaTek MT6993 Firmware: affected versions not specified
• MediaTek MT8188 Firmware: affected versions not specified
• MediaTek MT8189 Firmware: affected versions not specified
• MediaTek MT8668 Firmware: affected versions not specified
• MediaTek MT8781 Firmware: affected versions not specified
• MediaTek MT8793 Firmware: affected versions not specified
• MediaTek MT8910 Firmware: affected versions not specified

Published 2026-10-05. Last modified 2026-10-09.