VDB-354166 · CVE-2019-25654 · Exploit 46371

Coreftp Core FTP Server 2-Build 673 domain out-of-bounds write

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.2	$0-$5k	2.74-

Summaryinfo

A vulnerability categorized as critical has been discovered in Coreftp Core FTP Server 2-Build 673. Affected is an unknown function. Executing a manipulation of the argument domain can lead to out-of-bounds write. This vulnerability is handled as CVE-2019-25654. It is possible to launch the attack on the local host. Additionally, an exploit exists.

Detailsinfo

A vulnerability was found in Coreftp Core FTP Server 2-Build 673. It has been declared as problematic. This vulnerability affects an unknown functionality. The manipulation of the argument domain with an unknown input leads to a out-of-bounds write vulnerability. The CWE definition for the vulnerability is CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect availability. CVE summarizes:

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.

The weakness was released by Victor Mondragón as 46371. The advisory is available at exploit-db.com. This vulnerability was named CVE-2019-25654 since 03/30/2026. The exploitation appears to be easy. Local access is required to approach this attack. Technical details and also a public exploit are known.

It is possible to download the exploit at exploit-db.com. It is declared as proof-of-concept.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at Exploit-DB (46371) and EUVD (EUVD-2019-20046). Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

File Transfer Software

Vendor

Coreftp

Name

Core FTP Server

Version

2-Build 673

CPE 2.3info

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CPE 2.2info

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CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.2

VulDB Base Score: 3.3
VulDB Temp Score: 3.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 7.5
CNA Vector (VulnCheck): 🔒

CVSSv2info

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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Out-of-bounds write
CWE: CWE-787 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
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Exploit-DB: 🔒

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

03/30/2026 Advisory disclosed
03/30/2026 +0 days CVE reserved
03/30/2026 +0 days VulDB entry created
03/30/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: 46371
Researcher: Victor Mondragón
Status: Not defined

CVE: CVE-2019-25654 (🔒)
GCVE (CVE): GCVE-0-2019-25654
GCVE (VulDB): GCVE-100-354166
EUVD: 🔒
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 03/30/2026 15:20
Updated: 03/30/2026 16:12
Changes: 03/30/2026 15:20 (81), 03/30/2026 16:12 (1)
Complete: 🔍
Cache ID: 216:128:103