CVE-2026-20494: MediaTek MT6890 Firmware

Medium severity, CVSS 5.5. EPSS: 0.1% chance of exploitation in the next 30 days.

In wifi, there is a possible out of bounds read due to a missing bounds check. This could lead to local information disclosure if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS10960006 / BORA00155314, BORA00155001, BORA00154907; Issue ID: MSV-7570.

Affected products

• MediaTek MT6890 Firmware: affected versions not specified
• MediaTek MT6988 Firmware: affected versions not specified
• MediaTek MT6990 Firmware: affected versions not specified

Published 2026-08-03. Last modified 2026-08-19.