Unquoted Service Path Vulnerability in DHCP Broadband by Weird Solutions
CVE-2021-47829

8.5HIGH

Key Information:

Vendor

Weird-solutions

Status
Dhcp Broadband
Vendor
CVE Published:
16 January 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2021-47829?

DHCP Broadband 4.1.0.1503 is compromised by an unquoted service path vulnerability that permits local attackers to execute arbitrary code with elevated privileges. This flaw arises from an improperly configured service path to 'C:\Program Files\DHCP Broadband 4\dhcpt.exe', enabling the injection of malicious code which runs at service startup with LocalSystem permissions. Attackers can exploit this weakness to gain unauthorized access and execute harmful actions on the affected system.

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Affected Version(s)

DHCP Broadband 4.1.0.1503

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-2021-47829 - Proof of Concept

References

https://www.exploit-db.com/exploits/49850
exploit
https://www.weird-solutions.com
product
https://www.vulncheck.com/advisories/dhcp-broadband-dhcpt...
third-party-advisory

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

Erick Galindo
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