CVE-2024-51978
9.8
CRITICAL · CVSS 3.1 · EPSS 15.7% (pctl 97)
Patch early
EPSS 15.7% — above the 10% action threshold.
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.
Scoring
| CVSS | 9.8 (CRITICAL, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 15.71% — more likely to be exploited than 97% of all CVEs |
| Weakness | CWE-1391 |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2025-06-25 |
| Last modified | 2026-06-17 |
References
- https://assets.contentstack.io/v3/assets/blte4f029e766e6b253/blt6495b3c6adf2867f/685aa980a26c5e2b1026969c/vulnerability-disclosure-whitepaper.pdf
- 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-disclosure-whitepaper.pdf
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