CyberSecBulletin
CVE-2025-1143NVD status: Deferred

M100: Use of Hard-coded Credentials

Published Updated By the CyberSecBulletin desk

CVE-2025-1143 is a high-severity use of hard-coded credentials vulnerability in M100 from Billion Electric, with a CVSS 3.1 base score of 8.4 out of 10. It can be exploited with local access to the system by an unauthenticated attacker, without any action from a user. The record lists versions 1.04.1.592.10, 1.04.1.613.14, 1.04.1.676 as the first without the flaw, so updating M100 to one of those releases or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.19% chance of exploitation within 30 days, which is low compared with other CVEs.

Next patch cycle

High severity with no evidence of exploitation so far.

What to do

  1. Update M100 to 1.04.1.592.10 or 1.04.1.613.14 or 1.04.1.676, whichever matches your release line, or a later version.
  2. Update M150 to 1.04.1.592.10 or 1.04.1.613.14 or 1.04.1.676, whichever matches your release line, or a later version.
  3. Update M120N to 1.04.1.592.10 or 1.04.1.613.14 or 1.04.1.676, whichever matches your release line, or a later version.

Affected products and versions

VendorProductAffected versionsFixed in
Billion ElectricM1001.04.1.159.* up to, but not including, 1.04.1.592.10; 1.04.1.613.* up to, but not including, 1.04.1.613.14; 1.04.1.* up to, but not including, 1.04.1.6761.04.1.592.10, 1.04.1.613.14, 1.04.1.676
Billion ElectricM1501.04.1.592.* up to, but not including, 1.04.1.592.10; 1.04.1.613.* up to, but not including, 1.04.1.613.14; 1.04.1.* up to, but not including, 1.04.1.6761.04.1.592.10, 1.04.1.613.14, 1.04.1.676
Billion ElectricM120N1.04.1.592.* up to, but not including, 1.04.1.592.10; 1.04.1.613.* up to, but not including, 1.04.1.613.14; 1.04.1.* up to, but not including, 1.04.1.6761.04.1.592.10, 1.04.1.613.14, 1.04.1.676
Billion ElectricM5001.04.1.592.* up to, but not including, 1.04.1.592.10; 1.04.1.613.* up to, but not including, 1.04.1.613.14; 1.04.1.* up to, but not including, 1.04.1.6761.04.1.592.10, 1.04.1.613.14, 1.04.1.676

Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.

How the severity score breaks down

Attack vector
LocalThe attacker needs local access or must trick a user into running something.
Attack complexity
LowNo special conditions are needed; the attack works reliably.
Privileges required
NoneNo account or login is needed.
User interaction
NoneNo action by a victim is required.
Scope
UnchangedImpact stays within the vulnerable component.
Confidentiality
HighAll data handled by the component can be read.
Integrity
HighData or code can be modified at will.
Availability
HighThe component can be taken down completely.

Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. Scored by CNA (cert.org.tw).

Official description

Certain models of routers from Billion Electric has hard-coded embedded linux credentials, allowing attackers to log in through the SSH service using these credentials and obtain root privilege of the system.

Source: the CVE record as published by its numbering authority, via NVD and CVE.org.

The underlying weakness: Use of Hard-coded Credentials

The product contains hard-coded credentials, such as a password or cryptographic key.

How developers prevent this class of flaw

  • For outbound authentication: store passwords, keys, and other credentials outside of the code in a strongly-protected, encrypted configuration file or database that is protected from access by all outsiders, including other local users on the same system. Properly protect the key (CWE-320). If you cannot use encryption to protect the file, then make sure that the permissions are as restrictive as possible. In Windows environments, the Encrypted File System (EFS) may provide some protection.
  • For inbound authentication: Rather than hard-code a default username and password, key, or other authentication credentials for first time logins, utilize a first login mode that requires the user to enter a unique strong password or key.
  • If the product must contain hard-coded credentials or they cannot be removed, perform access control checks and limit which entities can access the feature that requires the hard-coded credentials. For example, a feature might only be enabled through the system console instead of through a network connection.

More Use of Hard-coded Credentials vulnerabilities (CWE-798)

Timeline

  1. CVE record published.
  2. CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: total).
  3. Record last changed materially (score, affected products, status or references).

References

Other vulnerabilities in M100

All M100 vulnerabilities

Recent Use of Hard-coded Credentials vulnerabilities

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