CVE-2025-4253— PCMan FTP Server HASH Command buffer overflow
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I. Basic Information for CVE-2025-4253
Vulnerability Information
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Vulnerability Title
PCMan FTP Server HASH Command buffer overflow
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability was found in PCMan FTP Server 2.0.7. It has been declared as critical. Affected by this vulnerability is an unknown functionality of the component HASH Command Handler. The manipulation leads to buffer overflow. The attack can be launched remotely. The exploit has been disclosed to the public and may be used.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Source: NVD (National Vulnerability Database)
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: NVD (National Vulnerability Database)
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HASH命令处理程序存在缓冲区溢出。
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-2025-4253
| # | 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-2025-4252 | 7.3 HIGH | PCMan FTP Server APPEND Command buffer overflow |
| CVE-2025-4251 | 7.3 HIGH | PCMan FTP Server RMDIR 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-2025-5634
PCMan FTP Server NOOP Command buffer overflow
Same weakness: CWE-120
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Totolink X5000R formDdns sub_458E40 buffer overflow - CVE-2026-6691
MongoDB C Driver Cyrus SASL Canonicalization Buffer Overflow - CVE-2026-7857
D-Link DI-8100 CGI user_group.asp sprintf buffer overflow - CVE-2026-7856
D-Link DI-8100 Web Management url_member.asp buffer overflow
V. Comments for CVE-2025-4253
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