The Uboot bootloader on the Verizon Wireless Network Extender SCS-2U01 allows physically proximate attackers to bypass the intended boot process and obtain a login prompt by connecting a crafted HDMI cable and sending a SysReq interrupt.
CWE-287 - Improper Authentication
Improper (or broken) authentication attacks are widespread, and have accounted for many of the worst data breaches in recent years. Improper authentication attacks are a class of vulnerabilities where an attacker impersonates a legitimate user by exploiting weaknesses in either session management or credential management to gain access to the user’s account. This can result in disclosure of sensitive information, and can lead to system compromise, theft, identity theft, and fraud.