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Fencer Vulns
critical 9.8

CVE-2024-51978 in the critical feed json

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

published 2025-06-25 16 mo ago modified 2026-06-17 4 mo ago also EUVD-2024-54698

cvss
9.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
15.8%
EPSS 15.8% chance of exploitation in 30 days, percentile 96%
public exploits
1
Metasploit, plus a Nuclei check

Summary

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.

Timeline

  1. First public exploit (Metasploit auxiliary/admin/misc/brother_default_admin_auth_bypass_cve_2024_51978)
  2. Published

CISA SSVC

Exploitation
Proof of concept is public
Automatable
yes
Technical impact
total
Assessed
16 mo ago

Exploit prediction

15.83% chance of exploitation in the next 30 days, higher than 96% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • Metasploit auxiliary/admin/misc/brother_default_admin_auth_bypass_cve_2024_51978 Multiple Brother devices authentication bypass via default administrator password generation metasploit auxiliary, normal rank, 2025-06-25
  • Nuclei template Brother Printers – Authentication Bypass via Default Admin Password nuclei detection template
  • github.com https://github.com/rapid7/metasploit-framework/pull/20349 referenced PoC, tagged "exploit" by a source, unverified
  • assets.contentstack.io https://assets.contentstack.io/v3/assets/blte4f029e766e6b253/blt6495b3c6adf2867f/685aa980a26c5e2b1026969c/vulnerability-disclosure-whitepaper.pdf referenced PoC, tagged "exploit" by a source, unverified
  • github.com https://github.com/sfewer-r7/BrotherVulnerabilities referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

  • Brother Industries, Ltd DCP-J928N-W/B
  • Brother Industries, Ltd MFC-J1800DW (Europe)
  • Brother Industries, Ltd MFC-J1800DW (USA)
  • Brother Industries, Ltd MFC-J4340DWE
  • Brother Industries, Ltd MFC-J4345DWXL
  • Brother Industries, Ltd MFC-J5855DWXL
  • Brother Industries, Ltd MFC-J6555DWXL
  • Brother Industries, Ltd DCP-B7520DW (China)
  • Brother Industries, Ltd DCP-B7535DW (China)
  • Brother Industries, Ltd DCP-B7640DW (Asia)
  • Brother Industries, Ltd DCP-L2535DW (China)
  • Brother Industries, Ltd DCP-L2540DW (Japan)
  • Brother Industries, Ltd DCP-L2550DW (China)
  • Brother Industries, Ltd DCP-L2550DW (Japan)
  • Brother Industries, Ltd DCP-L2550DW (Taiwan)
  • Brother Industries, Ltd DCP-L2660DW (Japan)
  • Brother Industries, Ltd HL-L2361DN
  • Brother Industries, Ltd HL-L5210DN (Japan)
  • Brother Industries, Ltd HL-L5210DW (Japan)
  • Brother Industries, Ltd HL-L6310DW (Japan)
  • Brother Industries, Ltd MFC-EX670
  • Brother Industries, Ltd MFC-L2700DW (Asia)
  • Brother Industries, Ltd MFC-L2715DW (Taiwan/Korea/Hong Kong)
  • Brother Industries, Ltd MFC-L2740DW (Japan)
  • Brother Industries, Ltd MFC-L2750DW (Japan)
  • Brother Industries, Ltd MFC-L2805DW (Asia)
  • Brother Industries, Ltd MFC-L2860DW (Japan)
  • Brother Industries, Ltd MFC-L2880DW (Japan)
  • Brother Industries, Ltd MFC-L3770CDW (Japan)
  • Brother Industries, Ltd MFC-L3780CDW (Japan)
  • Brother Industries, Ltd MFC-L5710DW (Japan)
  • Brother Industries, Ltd MFC-L5755DW (Japan)
  • Brother Industries, Ltd MFC-L6900DW (Japan)
  • Brother Industries, Ltd MFC-L8610CDW (Japan)
  • Brother Industries, Ltd MFC-L9570CDW (Japan)
  • Brother Industries, Ltd DS-940DW
  • Brother Industries, Ltd MDS-940DW
  • Brother Industries, Ltd TD-2130NSA
  • Brother Industries, Ltd TD-2135NSA
  • Brother Industries, Ltd TD-2135NWB
  • Brother Industries, Ltd TD-2135NWBSA
  • Brother Industries, Ltd SP-1 (Japan)
  • Brother Industries, Ltd HL-L8260CDN
  • Brother Industries, Ltd HL-L8260CDW
  • Brother Industries, Ltd HL-L8360CDW
  • Brother Industries, Ltd HL-L8360CDWT
  • Brother Industries, Ltd HL-L9310CDW
  • Brother Industries, Ltd DCP-L8410CDW
  • Brother Industries, Ltd MFC-L8610CDW
  • Brother Industries, Ltd MFC-L8690CDW

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.