Buffer Overflow Vulnerability in PCMan FTP Server Affects Remote Operations
CVE-2025-5637

6.9MEDIUM

Key Information:

Vendor

Pcman

Status
Ftp Server
Vendor
CVE Published:
5 June 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-5637?

A buffer overflow vulnerability exists in the SYSTEM Command Handler of PCMan FTP Server 2.0.7, allowing remote attackers to exploit the flaw. When manipulated, this defect can lead to unauthorized access or control of the system. It is critical for users to apply patches or mitigations promptly to safeguard their systems.

Affected Version(s)

FTP Server 2.0.7

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-2025-5637 - Proof of Concept

References

https://vuldb.com/?id.311124
vdb-entry
https://vuldb.com/?ctiid.311124
signaturepermissions-required
https://vuldb.com/?submit.587064
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-2025-5637 : Buffer Overflow Vulnerability in PCMan FTP Server Affects Remote Operations