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CVE-2025-44039

MEDIUM
5.1
CVSS Score
Published: May 13, 2025 at 12:00 AM UTC
Updated: June 17, 2026 at 09:24 AM UTC
2 products affected across 1 vendorCp Xr De21-s FirmwareCp-Xr-De21-S

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Severity
MEDIUM5.1
Exploit prediction
EPSS 0.2%
SSVC
PoC

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Cp Xr De21-s Firmware· Cpplusworld
95%
1.031.022
cpplusworld-cp-xr-de21-s (same device)
Cp-Xr-De21-S· Cpplusworlddevice
80%
All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

ExploitThird Party Advisory
Source: [email protected]
https://github.com/Yashodhanvivek/CP-XR-DE21-S--4G-Router-Vulnerabilities/blob/main/input.md

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.1MEDIUMCISA-ADP
Attack Vector
LOCAL
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-306

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