Unquoted Service Path Vulnerability in FreeLAN by FreeLAN Developers
CVE-2021-47882

8.5HIGH

Key Information:

Vendor

Freelan

Status
Freelan
Vendor
CVE Published:
21 January 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2021-47882?

FreeLAN 2.2 is affected by an unquoted service path vulnerability in its Windows service configuration, allowing local attackers to execute arbitrary code. This security flaw enables malicious executables to be injected via unquoted binary paths, facilitating execution with elevated LocalSystem privileges upon service startup. Users of FreeLAN 2.2 should be aware of this vulnerability and take necessary precautions to secure their systems.

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Affected Version(s)

FreeLAN 2.2

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-2021-47882 - Proof of Concept

References

https://www.exploit-db.com/exploits/49630
exploit
https://github.com/freelan-developers/freelan
product
https://www.vulncheck.com/advisories/freelan-freelan-serv...
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

Mohammed Alshehri
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