What is the CVSS score of CVE-2025-5635?

CVE-2025-5635 has a CVSS 3.1 base score of 7.3 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L. EPSS exploitation probability: 0.2%.

Which versions of Ftp are affected by CVE-2025-5635?

PCMan FTP Server 2.0.7 contains a remotely exploitable buffer overflow vulnerability with a public proof-of-concept exploit.

Is there a public PoC exploit available for CVE-2025-5635?

Yes, a public proof-of-concept exploit is available for CVE-2025-5635. Prioritise patching immediately. EPSS: 0.2%.

How to fix or mitigate CVE-2025-5635?

Within 24 hours: Inventory all systems running PCMan FTP Server 2.0.7 and assess exposure to untrusted networks. Within 7 days: Implement network segmentation to restrict FTP access to authorized users only, disable the PLS command handler if not required, and monitor for suspicious FTP activity. Within 30 days: Evaluate migration to an alternative, actively maintained FTP server solution or upgrade to a patched version once available from the vendor.

Ftp CVE-2025-5635

EUVD-2025-16958 HIGH

Buffer Overflow (CWE-119)

2025-06-05 cna@vuldb.com

Buffer Overflow Ftp Denial Of Service Pcman Ftp Server

7.3

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.3 HIGH

AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

Low

Lifecycle Timeline

EUVD ID Assigned

Mar 14, 2026 - 17:53 euvd

EUVD-2025-16958

Analysis Generated

Mar 14, 2026 - 17:53 vuln.today

PoC Detected

Jun 17, 2025 - 20:42 vuln.today

Public exploit code

CVE Published

Jun 05, 2025 - 04:15 nvd

HIGH 7.3

DescriptionCVE.org

A vulnerability classified as critical was found in PCMan FTP Server 2.0.7. This vulnerability affects unknown code of the component PLS Command Handler. The manipulation leads to buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.

AnalysisAI

Critical buffer overflow vulnerability in PCMan FTP Server 2.0.7 affecting the PLS Command Handler component. Remote attackers can exploit this flaw without authentication or user interaction to achieve confidentiality, integrity, and availability impacts. Public exploit code is available and the vulnerability may be actively exploited in the wild.

Technical ContextAI

PCMan FTP Server is a lightweight FTP (File Transfer Protocol) server implementation. The vulnerability exists in the PLS Command Handler—a component responsible for parsing and processing the PLS protocol command. The root cause is classified as CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer), a classic buffer overflow vulnerability where untrusted input from remote FTP clients is not properly validated before being written to a fixed-size buffer. This allows an attacker to overflow the buffer, potentially corrupting adjacent memory, executing arbitrary code, or causing denial of service. The attack vector is network-based (AV:N) with low attack complexity (AC:L), requiring no authentication (PR:N) or user interaction (UI:N), making exploitation straightforward.