CVE-2025-44039: Cpplusworld CP-XR-DE21-S Firmware

Medium severity, CVSS 5.1. EPSS: 0.2% chance of exploitation in the next 30 days.

CP-XR-DE21-S -4G Router Firmware version 1.031.022 was discovered to contain insecure protections for its UART console. This vulnerability allows local attackers to connect to the UART port via a serial connection, read all boot sequence, and revealing internal system details and sensitive information without any authentication.

Affected products

• Cpplusworld CP-XR-DE21-S Firmware: version 1.031.022 only

Published 2025-05-13. Last modified 2026-06-17.