CVE-2024-51978CWE-1391

Authentication bypass via default password generation affecting multiple models from Brother Industries, Ltd, Toshiba Tec, and Konica Minolta, Inc.

Critical · published June 25, 2025

CVSS v3.1
9.8
EPSS
16%
Percentile
96.9
In the wild
Unconfirmed
What it is

🚨 A serial number is all it takes for an attacker to generate the default admin password! This means they could take control of your device without breaking a sweat! 🔥 Think of it like a hotel room where the key card is hidden under the doormat, and the only access code is the room number — a snoopy guest just needs to know that number to unlock the door! An attacker could walk right in and have complete control over your device, allowing them to change settings, access sensitive data, or even disrupt services. This could lead to critical exposure or further attacks against your network, potentially wreaking havoc!

Put simply

Think of it like a hotel room where the key card is hidden under the doormat, and the only access code is the room number — a snoopy guest just needs to know that number to unlock the door! CVE-2024-51978 allows unauthenticated attackers to generate the default administrator password for a device simply by knowing its serial number, which can be discovered via other vulnerabilities such as CVE-2024-51977, HTTP/HTTPS requests, or SNMP requests.

What to do

An attacker could walk right in and have complete control over your device, allowing them to change settings, access sensitive data, or even disrupt services. This could lead to critical exposure or further attacks against your network, potentially wreaking havoc! Immediately update your device firmware to the latest version to patch this vulnerability. Additionally, change the default administrator password and ensure that your network security settings are robust to prevent unauthorized access. Regularly audit your devices for security updates. You’ve got this! Stay vigilant, follow these steps, and you’ll keep your devices secure! 🛡️

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.15832 · 96.9th percentile
Weakness
CWE-1391 · Use of Weak Credentials
Published
2025-06-25T07:17Z
EPSS history
Timeline
  • 25 JUN 07:17Z
    Authentication bypass via default password generation affecting multiple models from Brother Industries, Ltd, Toshiba Tec, and Konica Minolta, Inc.
    cvelistv5