Description
An unauthenticated attacker who can access either the HTTP service (TCP port 80), the HTTPS service (TCP port 443), or the IPP service (TCP port 631), can leak several pieces of sensitive information from a vulnerable device. The URI path /etc/mnt_info.csv can be accessed via a GET request and no authentication is required. The returned result is a comma separated value (CSV) table of information. The leaked information includes the device’s model, firmware version, IP address, and serial number.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Brother Industries | HL-L8260CDN | ≤ 1.65(ZH) | — |
| Brother Industries | DCP-J928N-W/B | 1.0 – ≤ 1.03(B) | — |
| Brother Industries | DCP-J987N-W/B | A – ≤ F | — |
| Brother Industries | DCP-T510W(China) | A – ≤ N | — |
| Brother Industries | DCP-T710W(China) | A – ≤ N | — |
| 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-J805DWXL | A – ≤ J | — |
| Brother Industries | MFC-J815DWXL | A – ≤ J | — |
| Brother Industries | MFC-J995DWXL | A – ≤ P | — |
| Brother Industries | MFC-T810W(China) | A – ≤ N | — |
| Brother Industries | DCP-B7520DW (China) | A – ≤ V | — |
| Brother Industries | DCP-B7535DW (China) | A – ≤ V | — |
| 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 | HL-L2361DN | 1.0 – ≤ 1.36(Z) | — |
| 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-L3770CDW (Japan) | A – ≤ ZA | — |
| 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 | TD-2130NSA | 1.0 – ≤ 1.25 | — |
| Brother Industries | TD-2135NSA | 1.0 – ≤ 2.17 | — |
| Brother Industries | TD-2135NWB | 1.0 – ≤ 2.17 | — |
| Brother Industries | TD-2135NWBSA | 1.0 – ≤ 2.17 | — |
| Brother Industries | DCP-J587N | A – ≤ F | — |
| Brother Industries | DCP-J973N W/B | A – ≤ Y | — |
| Brother Industries | DCP-J978N W/B | A – ≤ Y | — |
| Brother Industries | DCP-J982N W/B | A – ≤ Y | — |
| Brother Industries | DCP-J987N W/B | A – ≤ F | — |
| Brother Industries | SP-1 (Japan) | 1.0 – ≤ 1.03(A) | — |
| Brother Industries | MFC-J903N | A – ≤ X | — |
| 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-L2325DW | ≤ 1.74(ZE) | — |
| Brother Industries | HL-L2350DW | ≤ 1.74(ZE) | — |
| Brother Industries | HL-L2351DW | ≤ 1.74(ZE) | — |
| Brother Industries | HL-L2352DW | ≤ 1.74(ZE) | — |
| Brother Industries | HL-L2357DW | ≤ 1.74(ZE) | — |
| Brother Industries | HL-L2370DN | ≤ 1.74(ZE) | — |
| Brother Industries | HL-L2371DN | ≤ 1.74(ZE) | — |
| Brother Industries | HL-L2372DN | ≤ 1.74(ZE) | — |
| Brother Industries | HL-2590DN | ≤ 1.74(ZE) | — |
| Brother Industries | HL-L2370DW | ≤ 1.74(ZE) | — |
| Brother Industries | HL-L2370DWXL | ≤ 1.74(ZE) | — |
| Brother Industries | HL-L2375DW | ≤ 1.74(ZE) | — |
| Brother Industries | HL-L2376DW | ≤ 1.74(ZE) | — |
| Brother Industries | HL-B2050DN | ≤ 1.74(ZE) | — |
| Brother Industries | HL-B2080DW | ≤ 1.74(ZE) | — |
| Brother Industries | HL-L2385DW | ≤ 1.74(ZE) | — |
| Brother Industries | HL-L2386DW | ≤ 1.74(ZE) | — |
| Brother Industries | HL-2595DW | ≤ 1.74(ZE) | — |
| Brother Industries | HL-L2350DWR | ≤ 1.74(ZE) | — |
| Brother Industries | HL-L2370DNR | ≤ 1.74(ZE) | — |
| Brother Industries | HL-L2375DWR | ≤ 1.74(ZE) | — |
| Brother Industries | HL-L2395DW | ≤ ZC | — |
| Brother Industries | MFC-L2730DW | ≤ ZC | — |
| Brother Industries | MFC-L2732DW | ≤ ZC | — |
| Brother Industries | MFC-L2750DW | ≤ R | — |
| Brother Industries | MFC-L2750DWXL | ≤ ZC | — |
| Brother Industries | MFC-L2751DW | ≤ ZC | — |
| Brother Industries | MFC-L2770DW | ≤ ZC | — |
| Brother Industries | MFC-L2771DW | ≤ ZC | — |
| Brother Industries | MFC-L2730DWR | ≤ ZC | — |
| Brother Industries | MFC-L2750DWR | ≤ ZC | — |
| Brother Industries | DCP-7195DW | ≤ R | — |
| Brother Industries | MFC-7895DW | ≤ R | — |
| Brother Industries | MFC-L2730DN | ≤ R | — |
| Brother Industries | HL-L2390DW | ≤ ZC | — |
| Brother Industries | DCP-L2530DW | ≤ ZC | — |
| Brother Industries | DCP-L2531DW | ≤ ZC | — |
| Brother Industries | DCP-L2532DW | ≤ ZC | — |
| Brother Industries | DCP-L2535DW | A – ≤ ZC | — |
| Brother Industries | DCP-L2537DW | ≤ ZC | — |
| Brother Industries | DCP-B7520DW | ≤ V | — |
| Brother Industries | DCP-L2550DN | ≤ ZC | — |
| Brother Industries | DCP-L2550DW | ≤ M | — |
| Brother Industries | DCP-L2551DN | ≤ ZC | — |
| Brother Industries | DCP-L2551DW | ≤ ZC | — |
| Brother Industries | DCP-L2552DN | ≤ ZC | — |
| Brother Industries | DCP-B7535DW | ≤ V | — |
| Brother Industries | MFC-L2690DW | ≤ ZC | — |
| Brother Industries | MFC-L2710DN | ≤ ZC | — |
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
GitHub 1 repository
-
sfewer-r7/BrotherVulnerabilities ★ 35 · May 22, 2025
Multiple Brother Devices: Multiple Vulnerabilities (CVE-2024-51977, CVE-2024-51978, CVE-2024-51979, CVE-2024-51980, CVE-2024-51981, CVE-2024-51982, CVE-2024-51983, CVE-2024-51984)
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 MFC-L9570CDW - Information Disclosure http/cves/2024/CVE-2024-51977.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/sfewer-r7/BrotherVulnerabilities exploit
- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2024/CVE-2024-51977.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.fujifilm.com/fbglobal/eng/company/news/notice/2025/0625_announce.html vendor-advisory
- https://www.ricoh.com/products/security/vulnerabilities/vul?id=ricoh-2025-000007 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