CVE-2025-44039

MEDIUM

CP-XR-DE21-S Firmware 1.031.022 - Unauthenticated Sensitive Information Exposure via UART Console

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2025-44039. PoCs published by Yashodhanvivek.

AI-analyzed exploit summary This repository contains a README file referencing CVE-2025-44039, a UART vulnerability in the CP-XR-DE21-S 4G Router, but does not include exploit code or technical details. It directs users to download a report PDF for further information.

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

This repository contains a README file referencing CVE-2025-44039, a UART vulnerability in the CP-XR-DE21-S 4G Router, but does not include exploit code or technical details. It directs users to download a report PDF for further information.

Classification
Writeup 90%
Attack Type
Other
Complexity
Theoretical
Reliability
Theoretical
Target: CP-XR-DE21-S 4G Router
No auth needed
Prerequisites: Access to the report PDF referenced in the repository
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (1)

Core 1

Scores

CVSS v3 5.1
EPSS 0.0020
EPSS Percentile 9.4%
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