Buffer Overflow Vulnerability in PCMan FTP Server
CVE-2025-4236

6.9MEDIUM

Key Information:

Vendor

Pcman

Status
Ftp Server
Vendor
CVE Published:
3 May 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-4236?

A buffer overflow vulnerability exists in the PCMan FTP Server version 2.0.7, specifically within the MDIR Command Handler component. This vulnerability allows an attacker to execute a remote exploit, leveraging improper handling of memory during processing. Given its public disclosure, systems running the affected version are at significant risk, necessitating immediate action to secure the server and prevent potential unauthorized access or data compromise.

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-2025-4236 - Proof of Concept

References

https://vuldb.com/?id.307327
vdb-entry
https://vuldb.com/?ctiid.307327
signaturepermissions-required
https://vuldb.com/?submit.561510
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)
JSON
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CVE-2025-4236 : Buffer Overflow Vulnerability in PCMan FTP Server