CVE-2025-5634— PCMan FTP Server NOOP 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FTP服务器软件。 PCMan FTP Server 2.0.7版本存在安全漏洞，该漏洞源于组件NOOP Command Handler处理不当，可能导致缓冲区溢出。
Possible ATT&CK Techniques 2 AI
T1203 · Exploitation for Client Execution T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2025-5634
Vulnerability Information
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Vulnerability Title
PCMan FTP Server NOOP Command buffer overflow
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability classified as critical has been found in PCMan FTP Server 2.0.7. This affects an unknown part of the component NOOP Command Handler. The manipulation leads to buffer overflow. It is possible to initiate 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FTP服务器软件。 PCMan FTP Server 2.0.7版本存在安全漏洞，该漏洞源于组件NOOP Command Handler处理不当，可能导致缓冲区溢出。
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-2025-5634
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Same Patch Batch · PCMan · 2025-06-05 · 4 CVEs total
| CVE-2025-5635 | 7.3 HIGH | PCMan FTP Server PLS Command buffer overflow |
| CVE-2025-5636 | 7.3 HIGH | PCMan FTP Server SET Command buffer overflow |
| CVE-2025-5637 | 7.3 HIGH | PCMan FTP Server SYSTEM Command buffer overflow |
IV. Related Vulnerabilities
Same vendor: PCMan
-
CVE-2024-58299
PCMan FTP Server 2.0 Remote Buffer Overflow via 'pwd' Comman -
CVE-2025-5637
PCMan FTP Server SYSTEM Command buffer overflow -
CVE-2025-5636
PCMan FTP Server SET Command buffer overflow -
CVE-2025-5635
PCMan FTP Server PLS Command buffer overflow -
CVE-2025-5331
PCMan FTP Server NLST Command buffer overflow
Same weakness: CWE-120
-
CVE-2026-78322
File-roller: file-roller: stack buffer overflow in parse_pro -
CVE-2026-19568
SVG File Parsing Memory Corruption Vulnerability in Autodesk -
CVE-2026-71942
DrayTek VigorSwitch Multiple Models Buffer Overflow via mail -
CVE-2026-71941
DrayTek VigorSwitch Multiple Models Buffer Overflow via diag -
CVE-2026-71940
DrayTek VigorSwitch Multiple Models Buffer Overflow via acl_
V. Comments for CVE-2025-5634
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