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CVE

CWE

Training

CVE-2019-25686

Published: Apr 5, 2026

Modified: Apr 6, 2026

PUBLISHED

CVSS v3.1

7.5

HIGH

Description

Core FTP 2.0 build 653 contains a denial of service vulnerability in the PBSZ command that allows unauthenticated attackers to crash the service by sending a malformed command with an oversized buffer. Attackers can send a PBSZ command with a payload exceeding 211 bytes to trigger an access violation and crash the FTP server process.

Vendor	Product	Versions
Coreftp	Core FTP	affected `2.0`

Weaknesses (CWE)

CVSS v3.1 Details

CVSS v3.1 Vector

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

References

ExploitDB-46532

exploit

Official Product Homepage

product

Product Reference

product

VulnCheck Advisory: Core FTP 2.0 build 653 PBSZ Unauthenticated Denial of Service

third-party-advisory

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