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Vulnerability record · CVE-2024-51978 · published 25 June 2025

CVE-2024-51978: An unauthenticated attacker who knows the target device's serial number, can generate the default administrato…

An unauthenticated attacker who knows the target device's serial number, can generate the default administrator password for the device. An unauthenticated attacker can first discover the target device's serial number via CVE-2024-51977 over HTTP/HTTPS/IPP, or via a PJL request, or via an SNMP request.

9.8 CVSS 3.1 Critical EPSS 16% · top 3.3% CWE-1391 · CWE-1391 Deferred
9.8CVSS 3.1 base score
16%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
14References
17 Jun 2026Last modified by NVD

Description

An unauthenticated attacker who knows the target device's serial number, can generate the default administrator password for the device. An unauthenticated attacker can first discover the target device's serial number via CVE-2024-51977 over HTTP/HTTPS/IPP, or via a PJL request, or via an SNMP request.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

LinkTags
https://assets.contentstack.io/v3/assets/blte4f029e766e6b253/blt6495b3c6adf2867f/685aa980a26c5e2b1026969c/vulnerability-
https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2024/CVE-2024-51978.yaml
https://github.com/rapid7/metasploit-framework/pull/20349
https://github.com/sfewer-r7/BrotherVulnerabilities
https://support.brother.com/g/b/link.aspx?prod=group2&faqid=faq00100846_000
https://support.brother.com/g/b/link.aspx?prod=group2&faqid=faq00100848_000
https://support.brother.com/g/b/link.aspx?prod=lmgroup1&faqid=faqp00100620_000
https://www.konicaminolta.com/global-en/security/advisory/pdf/km-2025-0001.pdf
https://www.rapid7.com/blog/post/multiple-brother-devices-multiple-vulnerabilities-fixed
https://www.toshibatec.com/information/20250625_02.html
https://www.bleepingcomputer.com/news/security/brother-printer-bug-in-689-models-exposes-default-admin-passwords/
https://www.darkreading.com/endpoint-security/millions-brother-printers-critical-unpatchable-bug
https://www.securityweek.com/new-vulnerabilities-expose-millions-of-brother-printers-to-hacking/
https://assets.contentstack.io/v3/assets/blte4f029e766e6b253/blt6495b3c6adf2867f/685aa980a26c5e2b1026969c/vulnerability-

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Source: NIST National Vulnerability Database (record CVE-2024-51978), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.