Zlan Information Technology Co. - Zlan5143d - CRITICAL - CVE-2026-25084. The ZLAN5143D, developed by ZLMCU, is susceptible to an authentication bypass vulnerability that allows unauthorized users to access internal URLs directly. This flaw can potentially expose sensitive information and compromise the security of the product’s infrastructure. It is crucial for users of ZLAN5143D to apply the necessary updates and implement security measures to mitigate this risk, ensuring the integrity and confidentiality of their systems.