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.

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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