CVE-2026-20586: MediaTek MT2718 Firmware

High severity, CVSS 8.8. EPSS: 0.4% chance of exploitation in the next 30 days.

In vdec, there is a possible out of bounds write due to a missing bounds check. This could lead to remote escalation of privilege with no additional execution privileges needed. User interaction is needed for exploitation. Patch ID: ALPS11383899; Issue ID: MSV-9614.

Affected products

• MediaTek MT2718 Firmware: affected versions not specified
• MediaTek MT6768 Firmware: affected versions not specified
• MediaTek MT6769 Firmware: affected versions not specified
• MediaTek MT6789 Firmware: affected versions not specified
• MediaTek MT6833 Firmware: affected versions not specified
• MediaTek MT6855 Firmware: affected versions not specified
• MediaTek MT6877 Firmware: affected versions not specified
• MediaTek MT8186 Firmware: affected versions not specified
• MediaTek MT8188 Firmware: affected versions not specified
• MediaTek MT8189 Firmware: affected versions not specified
• MediaTek MT8195 Firmware: affected versions not specified
• MediaTek MT8196 Firmware: affected versions not specified
• MediaTek MT8367 Firmware: affected versions not specified
• MediaTek MT8391 Firmware: affected versions not specified
• MediaTek MT8395 Firmware: affected versions not specified
• MediaTek MT8668 Firmware: affected versions not specified
• MediaTek MT8676 Firmware: affected versions not specified
• MediaTek MT8678 Firmware: affected versions not specified
• MediaTek MT8696 Firmware: affected versions not specified
• MediaTek MT8781 Firmware: affected versions not specified
• MediaTek MT8788E Firmware: affected versions not specified
• MediaTek MT8792 Firmware: affected versions not specified
• MediaTek MT8793 Firmware: affected versions not specified
• MediaTek MT8799 Firmware: affected versions not specified
• MediaTek MT8910 Firmware: affected versions not specified

Published 2026-10-05. Last modified 2026-10-08.