Vulnerabilities

Vulnerability · CVE-2025-44039

CP-XR-DE21-S -4G Router Firmware version 1.031.022 was discovered to contain insecure protections for its UART console.

Published May 13, 2025 · catalog updated May 13, 2025 · CP-XR-DE21-S -4G Router Firmware

Check if you run it

No confirmed exploitation is on record for CVE-2025-44039. EPSS is 0.22%. Act only if a listed version of CP-XR-DE21-S -4G Router Firmware is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (CP-XR-DE21-S -4G Router Firmware).
  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium5.1
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.22%
Remediation
Vendor / distro source
Affected products
vendor n/a n/a n/a

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor n/a n/a n/an/a

How to fix CVE-2025-44039

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2025-44039. EPSS is 0.22%. Act only if a listed version of CP-XR-DE21-S -4G Router Firmware is installed.

Which versions are affected?

Compare what you have installed with n/a n/a n/a n/a. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.22%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. May 13, 2025 · EUVD

    Detected

    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.

  2. May 13, 2025 · EUVD

    Updated

    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.

Sources

  • CVE.orgVulnerability recordCVE-2025-44039

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-44039

    30-day exploitation probability 0.2%

    first.org
  • EUVDVulnerability recordEUVD-2025-14395

    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

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.