CVE-2025-4252— PCMan FTP Server APPEND Command buffer overflow
Quick assessment
Affected
PCMan FTP Server
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
PCMan FTP Server是PCMan开源的一套内容管理系统。 PCMan FTP Server 2.0.7版本存在安全漏洞，该漏洞源于APPEND命令处理程序存在缓冲区溢出，可能导致执行任意代码。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2025-4252
Vulnerability Information
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Vulnerability Title
PCMan FTP Server APPEND Command buffer overflow
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was found in PCMan FTP Server 2.0.7. It has been classified as critical. Affected is an unknown function of the component APPEND Command Handler. The manipulation leads to buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
未进行输入大小检查的缓冲区拷贝(传统缓冲区溢出)
Source: CVE Program / CVE List V5
Vulnerability Title
PCMan FTP Server 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
PCMan FTP Server是PCMan开源的一套内容管理系统。 PCMan FTP Server 2.0.7版本存在安全漏洞，该漏洞源于APPEND命令处理程序存在缓冲区溢出，可能导致执行任意代码。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| PCMan | FTP Server | 2.0.7 | - |
|
II. Public POCs for CVE-2025-4252
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · PCMan · 2025-05-04 · 4 CVEs total
| CVE-2025-4254 | 7.3 HIGH | PCMan FTP Server LIST Command buffer overflow |
| CVE-2025-4253 | 7.3 HIGH | PCMan FTP Server HASH Command buffer overflow |
| CVE-2025-4251 | 7.3 HIGH | PCMan FTP Server RMDIR Command buffer overflow |
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V. Comments for CVE-2025-4252
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