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.

INFO

Published Date :

2026-04-05T20:45:35.338Z

Last Modified :

2026-04-05T20:45:35.338Z

Source :

VulnCheck
AFFECTED PRODUCTS

The following products are affected by CVE-2019-25686 vulnerability.

Vendors Products
Coreftp
  • Core Ftp
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2019-25686.

URL Resource
http://coreftp.com/server/download/archive/CoreFTPServer653.exe cve-icon cve-icon
http://www.coreftp.com/ cve-icon cve-icon
https://www.exploit-db.com/exploits/46532 cve-icon cve-icon
https://www.vulncheck.com/advisories/core-ftp-build-653-pbsz-unauthenticated-denial-of-service cve-icon cve-icon
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CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Attack Requirements
Privileges Required
User Interaction
VS Confidentiality
VS Integrity
VS Availability
SS Confidentiality
SS Integrity
SS Availability
Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact