Authentication Bypass in Brother Devices Exposes User Credentials
CVE-2024-51984

6.8MEDIUM

Key Information:

Vendor

Brother Industries, Ltd

Status
Hl-l8260cdn
Hl-l8260cdw
Hl-l8360cdw
Hl-l8360cdwt
Vendor
CVE Published:
25 June 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2024-51984?

An issue has been identified that allows an authenticated attacker to manipulate Brother network devices to connect with external services such as LDAP or FTP that are under the attacker's control. By doing so, the attacker can compel the device to authenticate with these services using existing credentials. This exploitation can lead to the disclosure of plaintext passwords, placing sensitive information at risk and potentially facilitating further unauthorized access to connected systems.

Affected Version(s)

ADS-1700W 0

ADS-1800W 0

ADS-2400N 0

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2024-51984 - Proof of Concept

References

https://support.brother.com/g/b/link.aspx?prod=group2&faq...
vendor-advisory
https://support.brother.com/g/b/link.aspx?prod=group2&faq...
vendor-advisory
https://support.brother.com/g/b/link.aspx?prod=lmgroup1&f...
vendor-advisory

CVSS V3.1

Score:
6.8
Severity:
MEDIUM
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
None
Scope:
Changed

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Stephen Fewer, Principal Security Researcher at Rapid7
.
CVE-2024-51984 : Authentication Bypass in Brother Devices Exposes User Credentials