CVE-2024-31151Network attack vector

Unauthorized user access via hard-coded backdoor credentials

Published Oct 30, 2024 · Updated Nov 3, 2025

Hard-coded credentials in LevelOne WBR-6012 R0.40e6 allow remote attackers to gain user-level web access through an undocumented account. The authentication handler compares supplied passwords with an embedded constant and trusts a match despite the browser's nine-character limit. A direct authentication request bypasses that client-side length limit, and the resulting access remains limited to user-level privileges.

CVSS severity8.1
High
EPSS probability0.71%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Hard-coded credentials in LevelOne WBR-6012 R0.40e6 allow remote attackers to gain user-level web access through an undocumented account. The authentication handler compares supplied passwords with an embedded constant and trusts a match despite the browser's nine-character limit. A direct authentication request bypasses that client-side length limit, and the resulting access remains limited to user-level privileges.

The record

CVE
CVE-2024-31151
Published
Oct 30, 2024
Updated
Nov 3, 2025
Vendor
LevelOne
Product
WBR-6012
Classifications
CWE-798, T1078.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 30, 2024CVE publishedPublication date reported by the CVE source.
  2. Nov 3, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=R0.40e6

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

LevelOne · WBR-6012version=R0.40e6

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
8.1Cisco TalosCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-798Use of Hard-coded Credentials
T1078.001Valid Accounts: Default Accounts

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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