CVE-2024-51978
An unauthenticated attacker who knows the target device's serial number, can generate the default administrator password for the device.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 15.8%, higher than 97% of all known CVEs. Patch or mitigate before the next change window.
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
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 15.83% probability · 97th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-1391
- Source
- cve@rapid7.com
EPSS 15.8% since 26 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.