Security vulnerabilities from Zyxel

As of 11/09/2026, Zyxel recorded 3 security vulnerabilities in the last 90 days across 12 products, including 2 rated High or above and 0 known exploited vulnerabilities (KEV) that should be prioritized for immediate remediation.

Over the last 90 days, EX3501-T0 firmware had the most security vulnerabilities in the Zyxel ecosystem, with 1 vulnerabilities—approximately 33.33% of the provider's total vulnerabilities during this period.