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CVE-2019-25654

Core FTP/SFTP Server 1.2 Denial of Service via Buffer Overflow

Published: Mar 30, 2026Updated: Apr 8, 2026 Sources: CVE List NVDCWE-787
NVD MITRE
7.5CVSSHIGH
EPSS Score
0.7%
Top 52.1%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available

Description

Core FTP/SFTP Server 1.2 contains a buffer overflow vulnerability that allows attackers to crash the service by supplying an excessively long string in the User domain field. Attackers can paste a malicious payload containing 7000 bytes of data into the domain configuration to trigger an application crash and deny service.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-787

Affected Products

core ftpcoreftp
On-prem
Consumer Software / file-utility
Core FTP/SFTP ServerCoreftp
On-prem
Consumer Software / file-utility
coreftpcommercialConsumer Softwareaka core ftp, coreftp, core ftp/sftp server

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

http://www.coreftp.com/
coreftp.com
http://www.coreftp.com/server/download/archive/CoreFTPServer589.42.exe
coreftp.com
https://www.exploit-db.com/exploits/46371
exploit-db.com
and 1 more references View all →

Timeline

Published
Mar 30, 2026
Last Updated
Apr 8, 2026

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