CVE-2025-44039: cp-xr-de21-s Missing Auth — Exploit

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.

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CVSS v3.1 Score

5.1

MEDIUM

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

Weakness Type (CWE)

CWE-306 Missing Authentication

Affected Products

Vendor	Product	Versions
cpplusworld	cp-xr-de21-s_firmware	All
cpplusworld	cp-xr-de21-s	All

References

Exploits

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

Frequently Asked Questions

What is CVE-2025-44039? +

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. It has a CVSS v3.1 base score of 5.1 (MEDIUM).

How severe is CVE-2025-44039? +

CVE-2025-44039 has a CVSS v3.1 score of 5.1 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2025-44039? +

CVE-2025-44039 affects products from cpplusworld, specifically: cp-xr-de21-s, cp-xr-de21-s_firmware. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-44039? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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