CVE-2025-44039

MEDIUM

Cpplusworld Cp-xr-de21-s Firmware - Missing Authentication

Title source: rule

Description

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.

Exploits (1)

nomisec WRITEUP

by Yashodhanvivek · poc

https://github.com/Yashodhanvivek/CP-XR-DE21-S--4G-Router-Vulnerabilities

View Code ZIP pw:eip

References (1)

[Exploit, Third Party Advisory] https://github.com/Yashodhanvivek/CP-XR-DE21-S--4G-Router-Vulnerabilities/blob/main/input.md

Scores

CVSS v3 5.1

EPSS 0.0006

EPSS Percentile 20.1%

Attack Vector LOCAL

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

CISA SSVC

Vulnrichment

Exploitation poc

Automatable no

Technical Impact partial

Details

CWE

CWE-306

Status published

Products (1)

cpplusworld/cp-xr-de21-s_firmware 1.031.022

Published May 13, 2025

Tracked Since Feb 18, 2026