CVE-2019-25654 - CVE House
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Status published High CVE-2019-25654

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

Vulnerability 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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • Victor Mondragón

References

More from Coreftp

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CVE-2019-25686
Core FTP 2.0 build 653 PBSZ Unauthenticated Denial of Service
High 8.7

Affected Vendor

Affected Software

Core FTP/SFTP Server
Vulnerable Versions:
v2-Build 673

Timeline

Official Publish: March 30th, 2026
Last Modified: March 30th, 2026
Added to House: July 20th, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weaknesses (CWE)

CWE-787

MITRE ATT&CK TTPs

T1190 Exploit Public-Facing Application
Initial Access
T1068 Exploitation for Privilege Escalation
Privilege Escalation
T1055 Process Injection
Defense Evasion
T1105 Ingress Tool Transfer
Command and Control
T1485 Data Destruction
Impact