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CVE-2024-51978— Authentication bypass via default password generation affecting multiple models from Brother Industries, Ltd, Toshiba Tec, and Konica Minolta, Inc.

Quick assessment

Affected
Brother Industries, Ltd DCP-J928N-W/B
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Brother Industries Multiple driver installers for Windows是日本Brother Industries公司的一个驱动软件。 Brother Industries Multiple driver installers for Windows存在安全漏洞，该漏洞源于未经验证的攻击者可通过目标设备序列号生成默认管理员密码。

CVSS 9.8 · Critical EPSS 15.71% · P97
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I. Basic Information for CVE-2024-51978

Vulnerability Information
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Vulnerability Title
Authentication bypass via default password generation affecting multiple models from Brother Industries, Ltd, Toshiba Tec, and Konica Minolta, Inc.
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-1391
Source: CVE Program / CVE List V5
Vulnerability Title
Brother Industries Multiple driver installers for Windows 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Brother Industries Multiple driver installers for Windows是日本Brother Industries公司的一个驱动软件。 Brother Industries Multiple driver installers for Windows存在安全漏洞，该漏洞源于未经验证的攻击者可通过目标设备序列号生成默认管理员密码。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

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Affected Products

Vendor Product Affected Versions CPE Subscribe
Brother Industries, Ltd DCP-J928N-W/B 1.0 ~ 1.03(B) -
Brother Industries, Ltd MFC-J1800DW (Europe) 1.0 ~ 1.13(H) -
Brother Industries, Ltd MFC-J1800DW (USA) 1.0 ~ 1.02(B) -
Brother Industries, Ltd MFC-J4340DWE 1.0 ~ 1.38(M) -
Brother Industries, Ltd MFC-J4345DWXL 1.0 ~ 1.38(M) -
Brother Industries, Ltd MFC-J5855DWXL 1.0 ~ 1.25(J) -
Brother Industries, Ltd MFC-J6555DWXL 1.0 ~ 1.19(H) -
Brother Industries, Ltd DCP-B7520DW (China) A ~ V -
Brother Industries, Ltd DCP-B7535DW (China) A ~ V -
Brother Industries, Ltd DCP-B7640DW (Asia) 1.0 ~ 1.16(F) -
Brother Industries, Ltd DCP-L2535DW (China) A ~ M -
Brother Industries, Ltd DCP-L2540DW (Japan) A ~ T -
Brother Industries, Ltd DCP-L2550DW (China) A ~ M -
Brother Industries, Ltd DCP-L2550DW (Japan) A ~ R -
Brother Industries, Ltd DCP-L2550DW (Taiwan) A ~ V -
Brother Industries, Ltd DCP-L2660DW (Japan) 1.0 ~ 1.08(C) -
Brother Industries, Ltd HL-L2361DN 1.0 ~ 1.36(Z) -
Brother Industries, Ltd HL-L5210DN (Japan) 1.0 ~ 1.12(F) -
Brother Industries, Ltd HL-L5210DW (Japan) 1.0 ~ 1.12(F) -
Brother Industries, Ltd HL-L6310DW (Japan) 1.0 ~ 1.10(F) -
Brother Industries, Ltd MFC-EX670 1.0 ~ 1.22(S) -
Brother Industries, Ltd MFC-L2700DW (Asia) A ~ W -
Brother Industries, Ltd MFC-L2715DW (Taiwan/Korea/Hong Kong) A ~ V -
Brother Industries, Ltd MFC-L2740DW (Japan) A ~ U -
Brother Industries, Ltd MFC-L2750DW (Japan) A ~ R -
Brother Industries, Ltd MFC-L2805DW (Asia) 1.0 ~ 1.16(F) -
Brother Industries, Ltd MFC-L2860DW (Japan) 1.0 ~ 1.08(C) -
Brother Industries, Ltd MFC-L2880DW (Japan) 1.0 ~ 1.08(C) -
Brother Industries, Ltd MFC-L3770CDW (Japan) A ~ ZA -
Brother Industries, Ltd MFC-L3780CDW (Japan) 1.0 ~ 1.12(J) -

II. Public POCs for CVE-2024-51978

# POC Description Source Link Shenlong Link
1 By leaking a target device's serial number, a remote attacker can generate the target device's default administrator password. The target device may leak its serial number via unauthenticated HTTP, HTTPS, IPP, SNMP, or PJL requests. https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2024/CVE-2024-51978.yaml POC Details
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III. Intelligence Information for CVE-2024-51978

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Vendor Advisories for CVE-2024-51978 (3)

Proof of Concept for CVE-2024-51978 (1)

Same Patch Batch · Brother Industries, Ltd · 2025-06-25 · 8 CVEs total

CVE-2024-51982 7.5 HIGH Unauthenticated Denial of Service (DoS) via malformed PJL request affecting multiple model
CVE-2024-51983 7.5 HIGH Unauthenticated Denial of Service (DoS) via malformed WS-Scan request affecting multiple m
CVE-2024-51979 7.2 HIGH Authenticated stack based buffer overflow affecting multiple models from Brother Industrie
CVE-2024-51984 6.8 MEDIUM Authenticated disclosure of external service passwords via pass-back attack affecting mult
CVE-2024-51981 5.3 MEDIUM Unauthenticated Server Side Request Forgery (SSRF) via WS-Eventing affecting multiple mode
CVE-2024-51977 5.3 MEDIUM Unauthenticated leak of sensitive information affecting multiple models from Brother Indus
CVE-2024-51980 5.3 MEDIUM Unauthenticated Server Side Request Forgery (SSRF) via WS-Addressing affecting multiple mo

IV. Related Vulnerabilities

Same vendor: Brother Industries, Ltd
Same weakness: CWE-1391

V. Comments for CVE-2024-51978

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