Buffer Overflow Vulnerability in FreeFloat FTP Server
CVE-2025-5221

6.9MEDIUM

Key Information:

Vendor

Freefloat

Status
Ftp Server
Vendor
CVE Published:
27 May 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-5221?

A buffer overflow vulnerability exists in FreeFloat FTP Server 1.0.0, specifically within the QUOTE Command Handler component. This flaw allows an attacker to manipulate the buffer, potentially leading to remote code execution. The issue has been publicly disclosed, raising concerns about the security of systems running this version of FreeFloat FTP Server. Users are advised to assess their exposure and take appropriate measures to mitigate the risk.

Affected Version(s)

FTP Server 1.0.0

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-2025-5221 - Proof of Concept

References

https://vuldb.com/?id.310317
vdb-entry
https://vuldb.com/?ctiid.310317
signaturepermissions-required
https://vuldb.com/?submit.582971
third-party-advisory

CVSS V4

Score:
6.9
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
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

Fernando Mengali (VulDB User)
.
CVE-2025-5221 : Buffer Overflow Vulnerability in FreeFloat FTP Server