By using the "uscan" protocol provided by the eSCL specification, an attacker can discover the serial number of multi-function printers that implement the Brother-provided firmware. This serial number can, in turn, can be leveraged by the flaw described by CVE-2024-51978 to calculate the default administrator password. This flaw is similar to CVE-2024-51977, with the only difference being the protocol by which an attacker can use to learn the remote device's serial number. The eSCL/uscan vector is typically only exposed on the local network. Any discovery service that implements the eSCL specification can be used to exploit this vulnerability, and one such implementation is the runZero Explorer. Changing the default administrator password will render this vulnerability virtually worthless, since the calculated default administrator password would no longer be the correct password.

Metrics

No CVSS v4.0

Attack Vector Adjacent Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact None

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact partial

Affected Vendors & Products

No data.

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References
Link Providers
https://help.runzero.com/docs/installing-an-explorer/ cve-icon cve-icon
https://support.brother.com/g/b/faqend.aspx?c=us&lang=en&prod=group2&faqid=faq00100851_000 cve-icon cve-icon
https://takeonme.org/gcves/GCVE-1337-2025-00000000000000000000000000000000000000000000000001011111011111010111111001000000000000000000000000000000000000000000000000000000001 cve-icon cve-icon
https://www.rapid7.com/blog/post/multiple-brother-devices-multiple-vulnerabilities-fixed/ cve-icon cve-icon
History

Fri, 15 Aug 2025 06:00:00 +0000

Type Values Removed Values Added
References

Wed, 13 Aug 2025 15:00:00 +0000

Type Values Removed Values Added
Title Unauthenticated leak of sensitive information affecting multiple models from Brother Industries, Ltd., FUJIFILM Business Innovation, Ricoh, Toshiba Tec, and Konica Minolta, Inc. Unauthenticated leak of sensitive information affecting multiple models from Brother Industries, Ltd., Toshiba Tec, and Konica Minolta, Inc.

Tue, 12 Aug 2025 16:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Tue, 12 Aug 2025 16:00:00 +0000

Type Values Removed Values Added
Description By using the "uscan" protocol provided by the eSCL specification, an attacker can discover the serial number of multi-function printers that implement the Brother-provided firmware. This serial number can, in turn, can be leveraged by the flaw described by CVE-2024-51978 to calculate the default administrator password. This flaw is similar to CVE-2024-51977, with the only difference being the protocol by which an attacker can use to learn the remote device's serial number. The eSCL/uscan vector is typically only exposed on the local network. By using the "uscan" protocol provided by the eSCL specification, an attacker can discover the serial number of multi-function printers that implement the Brother-provided firmware. This serial number can, in turn, can be leveraged by the flaw described by CVE-2024-51978 to calculate the default administrator password. This flaw is similar to CVE-2024-51977, with the only difference being the protocol by which an attacker can use to learn the remote device's serial number. The eSCL/uscan vector is typically only exposed on the local network. Any discovery service that implements the eSCL specification can be used to exploit this vulnerability, and one such implementation is the runZero Explorer. Changing the default administrator password will render this vulnerability virtually worthless, since the calculated default administrator password would no longer be the correct password.
References

Tue, 12 Aug 2025 15:30:00 +0000

Type Values Removed Values Added
Description By using the "uscan" protocol provided by the eSCL specification, an attacker can discover the serial number of multi-function printers that implement the Brother-provided firmware. This serial number can, in turn, can be leveraged by the flaw described by CVE-2024-51978 to calculate the default administrator password. This flaw is similar to CVE-2024-51977, with the only difference being the protocol by which an attacker can use to learn the remote device's serial number. The eSCL/uscan vector is typically only exposed on the local network.
Title Unauthenticated leak of sensitive information affecting multiple models from Brother Industries, Ltd., FUJIFILM Business Innovation, Ricoh, Toshiba Tec, and Konica Minolta, Inc.
Weaknesses CWE-538
References
Metrics cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N'}
cve-icon MITRE

Status: PUBLISHED

Assigner: AHA

Published: 2025-08-12T15:23:00.577Z

Updated: 2025-08-15T05:53:23.017Z

Reserved: 2025-08-01T00:49:49.961Z

Link: CVE-2025-8452

cve-icon Vulnrichment

Updated: 2025-08-12T15:33:31.487Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-08-12T16:15:29.620

Modified: 2025-08-15T06:15:26.670

Link: CVE-2025-8452

cve-icon Redhat

No data.