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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Brother Industries | DCP-J928N-W/B | 1.0 – ≤ 1.03(B) | — |
| Brother Industries | MFC-J1800DW (Europe) | 1.0 – ≤ 1.13(H) | — |
| Brother Industries | MFC-J1800DW (USA) | 1.0 – ≤ 1.02(B) | — |
| Brother Industries | MFC-J4340DWE | 1.0 – ≤ 1.38(M) | — |
| Brother Industries | MFC-J4345DWXL | 1.0 – ≤ 1.38(M) | — |
| Brother Industries | MFC-J5855DWXL | 1.0 – ≤ 1.25(J) | — |
| Brother Industries | MFC-J6555DWXL | 1.0 – ≤ 1.19(H) | — |
| Brother Industries | DCP-B7520DW (China) | A – ≤ V | — |
| Brother Industries | DCP-B7535DW (China) | A – ≤ V | — |
| Brother Industries | DCP-B7640DW (Asia) | 1.0 – ≤ 1.16(F) | — |
| Brother Industries | DCP-L2535DW (China) | A – ≤ M | — |
| Brother Industries | DCP-L2540DW (Japan) | A – ≤ T | — |
| Brother Industries | DCP-L2550DW (China) | A – ≤ M | — |
| Brother Industries | DCP-L2550DW (Japan) | A – ≤ R | — |
| Brother Industries | DCP-L2550DW (Taiwan) | A – ≤ V | — |
| Brother Industries | DCP-L2660DW (Japan) | 1.0 – ≤ 1.08(C) | — |
| Brother Industries | HL-L2361DN | 1.0 – ≤ 1.36(Z) | — |
| Brother Industries | HL-L5210DN (Japan) | 1.0 – ≤ 1.12(F) | — |
| Brother Industries | HL-L5210DW (Japan) | 1.0 – ≤ 1.12(F) | — |
| Brother Industries | HL-L6310DW (Japan) | 1.0 – ≤ 1.10(F) | — |
| Brother Industries | MFC-EX670 | 1.0 – ≤ 1.22(S) | — |
| Brother Industries | MFC-L2700DW (Asia) | A – ≤ W | — |
| Brother Industries | MFC-L2715DW (Taiwan/Korea/Hong Kong) | A – ≤ V | — |
| Brother Industries | MFC-L2740DW (Japan) | A – ≤ U | — |
| Brother Industries | MFC-L2750DW (Japan) | A – ≤ R | — |
| Brother Industries | MFC-L2805DW (Asia) | 1.0 – ≤ 1.16(F) | — |
| Brother Industries | MFC-L2860DW (Japan) | 1.0 – ≤ 1.08(C) | — |
| Brother Industries | MFC-L2880DW (Japan) | 1.0 – ≤ 1.08(C) | — |
| Brother Industries | MFC-L3770CDW (Japan) | A – ≤ ZA | — |
| Brother Industries | MFC-L3780CDW (Japan) | 1.0 – ≤ 1.12(J) | — |
| Brother Industries | MFC-L5710DW (Japan) | 1.0 – ≤ 1.12（H） | — |
| Brother Industries | MFC-L5755DW (Japan) | A – ≤ ZP | — |
| Brother Industries | MFC-L6900DW (Japan) | A – ≤ ZP | — |
| Brother Industries | MFC-L8610CDW (Japan) | A – ≤ ZD | — |
| Brother Industries | MFC-L9570CDW (Japan) | A – ≤ ZD | — |
| Brother Industries | DS-940DW | A – ≤ G(1.7) | — |
| Brother Industries | MDS-940DW | A – ≤ G(1.7) | — |
| Brother Industries | TD-2130NSA | 1.0 – ≤ 1.25 | — |
| Brother Industries | TD-2135NSA | 1.0 – ≤ 2.19 | — |
| Brother Industries | TD-2135NWB | 1.0 – ≤ 2.19 | — |
| Brother Industries | TD-2135NWBSA | 1.0 – ≤ 2.19 | — |
| Brother Industries | SP-1 (Japan) | 1.0 – ≤ 1.03(A) | — |
| Brother Industries | HL-L8260CDN | ≤ 1.65(ZH) | — |
| Brother Industries | HL-L8260CDW | ≤ 1.65(ZH) | — |
| Brother Industries | HL-L8360CDW | ≤ 1.68(ZG) | — |
| Brother Industries | HL-L8360CDWT | ≤ 1.68(ZG) | — |
| Brother Industries | HL-L9310CDW | ≤ 1.68(ZG) | — |
| Brother Industries | DCP-L8410CDW | ≤ ZK | — |
| Brother Industries | MFC-L8610CDW | ≤ ZK | — |
| Brother Industries | MFC-L8690CDW | ≤ ZK | — |
| Brother Industries | MFC-L8900CDW | ≤ ZM | — |
| Brother Industries | MFC-L9570CDW | ≤ ZM | — |
| Brother Industries | MFC-L9577CDW | ≤ ZM | — |
| Brother Industries | HL-L5210DN | 1.0 – ≤ 1.14(H) | — |
| Brother Industries | HL-L5212DN | ≤ 1.14(H) | — |
| Brother Industries | HL-L5215DN | ≤ 1.14(H) | — |
| Brother Industries | HL-L5210DW | 1.0 – ≤ 1.14(H) | — |
| Brother Industries | HL-L5210DWT | ≤ 1.14(H) | — |
| Brother Industries | HL-L5212DW | ≤ 1.14(H) | — |
| Brother Industries | HL-L5215DW | ≤ 1.14(H) | — |
| Brother Industries | HL-L6210DW | ≤ 1.14(H) | — |
| Brother Industries | HL-L6210DWT | ≤ 1.14(H) | — |
| Brother Industries | HL-L6217DW | ≤ 1.14(H) | — |
| Brother Industries | HL-L5218DN | ≤ 1.12(F) | — |
| Brother Industries | HL-L5228DW | ≤ 1.12(F) | — |
| Brother Industries | HL-L6310DW | 1.0 – ≤ 1.16(G) | — |
| Brother Industries | HL-L6410DN | ≤ 1.16(G) | — |
| Brother Industries | HL-L6415DN | ≤ 1.16(G) | — |
| Brother Industries | HL-L6412DW | ≤ 1.16(G) | — |
| Brother Industries | HL-L6415DW | ≤ 1.16(G) | — |
| Brother Industries | HL-L6415DWT | ≤ 1.16(G) | — |
| Brother Industries | HL-L6418DW | ≤ 1.16(G) | — |
| Brother Industries | HL-EX415DW | ≤ 1.16(G) | — |
| Brother Industries | DCP-L5510DN | ≤ 1.18(J) | — |
| Brother Industries | DCP-L5512DN | ≤ 1.18(J) | — |
| Brother Industries | DCP-L5518DN | ≤ 1.18(J) | — |
| Brother Industries | DCP-L5510DW | ≤ 1.18(J) | — |
| Brother Industries | DCP-L5610DN | ≤ 1.18(J) | — |
| Brother Industries | DCP-L5660DN | ≤ 1.18(J) | — |
| Brother Industries | DCP-L5662DN | ≤ 1.18(J) | — |
| Brother Industries | MFC-L5710DN | ≤ 1.18(J) | — |
| Brother Industries | MFC-L5715DN | ≤ 1.18(J) | — |
| Brother Industries | MFC-L5718DN | ≤ 1.18(J) | — |
| Brother Industries | MFC-L5710DW | 1.0 – ≤ 1.18(J) | — |
| Brother Industries | MFC-L5715DW | ≤ 1.18(J) | — |
| Brother Industries | MFC-L5717DW | ≤ 1.18(J) | — |
| Brother Industries | MFC-L5728DW | ≤ 1.18(J) | — |
| Brother Industries | MFC-L5912DW | ≤ 1.18(J) | — |
| Brother Industries | MFC-L5915DW | ≤ 1.18(J) | — |
| Brother Industries | MFC-L6710DW | ≤ 1.18(J) | — |
| Brother Industries | MFC-L6720DW | ≤ 1.18(J) | — |
| Brother Industries | MFC-L6810DW | ≤ 1.18(J) | — |
| Brother Industries | MFC-L6910DN | ≤ 1.18(J) | — |
| Brother Industries | MFC-L6915DN | ≤ 1.18(J) | — |
| Brother Industries | MFC-L6912DW | ≤ 1.18(J) | — |
| Brother Industries | MFC-L6915DW | ≤ 1.18(J) | — |
| Brother Industries | MFC-EX910 | ≤ 1.18(J) | — |
| Brother Industries | MFC-EX915DW | ≤ 1.18(J) | — |
| Brother Industries | MFC-L6820DW | ≤ 1.15(H) | — |
| Brother Industries | HL-L9410CDN | ≤ 1.23(Q) | — |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
Metasploit 1 module
-
Multiple Brother devices authentication bypass via default administrator password generation
auxiliary/admin/misc/brother_default_admin_auth_bypass_cve_2024_51978
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Automated scanner template
A ready-made Nuclei template detects this vulnerability automatically. Vulnerabilities with public scanner templates are typically probed across the internet soon after the template appears — exposed systems should be patched first.
- Brother Printers – Authentication Bypass via Default Admin Password http/cves/2024/CVE-2024-51978.yaml
Source: projectdiscovery/nuclei-templates (MIT) — updated daily. Only links are listed.
References
- https://www.rapid7.com/blog/post/multiple-brother-devices-multiple-vulnerabilities-fixed third-party-advisory
- https://assets.contentstack.io/v3/assets/blte4f029e766e6b253/blt6495b3c6adf2867f/685aa980a26c5e2b1026969c/vulnerability-disclosure-whitepaper.pdf technical-description
- https://github.com/rapid7/metasploit-framework/pull/20349 exploit
- https://github.com/sfewer-r7/BrotherVulnerabilities exploit
- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2024/CVE-2024-51978.yaml exploit
- https://support.brother.com/g/b/link.aspx?prod=group2&faqid=faq00100846_000 vendor-advisory
- https://support.brother.com/g/b/link.aspx?prod=group2&faqid=faq00100848_000 vendor-advisory
- https://support.brother.com/g/b/link.aspx?prod=lmgroup1&faqid=faqp00100620_000 vendor-advisory
- https://www.toshibatec.com/information/20250625_02.html vendor-advisory
- https://www.konicaminolta.com/global-en/security/advisory/pdf/km-2025-0001.pdf vendor-advisory