Unquoted Service Path Vulnerability in Brother BRAdmin Professional
CVE-2021-47869

8.5HIGH

Key Information:

Vendor

Brother Industries, Ltd.

Status
Bradmin Professional
Vendor
CVE Published:
21 January 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2021-47869?

The BRAdmin Professional 3.75 software from Brother includes a vulnerability in the BRA_Scheduler service that allows local users to execute arbitrary code. By placing a malicious executable file named 'BRAdmin' in the C:\Program Files (x86)\Brother\ directory, attackers can exploit this flaw to escalate their local privileges and potentially take full control of the affected system.

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Affected Version(s)

BRAdmin Professional 3.75.0000

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2021-47869 - Proof of Concept

References

https://www.exploit-db.com/exploits/49671
exploit
https://global.brother/
product
https://support.brother.com/g/b/downloadend.aspx?c=us&lan...
product

CVSS V4

Score:
8.5
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Metin Yunus Kandemir
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