CVE-2026-20456: MediaTek MT7902 Firmware

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

In wlan STA driver, there is a possible system crash due to a missing bounds check. This could lead to local denial of service with User execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00480851; Issue ID: MSV-6338.

Affected products

• MediaTek MT7902 Firmware: affected versions not specified
• MediaTek MT7920 Firmware: affected versions not specified
• MediaTek MT7921 Firmware: affected versions not specified
• MediaTek MT7922 Firmware: affected versions not specified
• MediaTek MT7925 Firmware: affected versions not specified
• MediaTek MT7927 Firmware: affected versions not specified

Published 2026-06-01. Last modified 2026-07-22.