Core FTP Lite 1.3 contains a buffer overflow vulnerability in the username input field that allows attackers to crash the application by supplying oversized input. Attackers can generate a 7000-byte payload of repeated 'A' characters to trigger an application crash without requiring additional interaction.

Metrics

Attack Vector Local

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction Active

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00028.

Key SSVC decision points have not yet been added.

Affected Vendors & Products

Vendors Products
Core Ftp Subscribe
Core Ftp Lite Subscribe

No data.

No data.

OpenCVE Enrichment is a feature of OpenCVE that uses AI to automatically link vendors and products to CVEs. Learn more on GitHub.

Vendors Products
Core Ftp Subscribe
Core Ftp Lite Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
http://www.coreftp.com/ cve-icon cve-icon
https://www.exploit-db.com/exploits/48100 cve-icon cve-icon
https://www.vulncheck.com/advisories/core-ftp-lite-denial-of-service-poc cve-icon cve-icon
History

Mon, 09 Feb 2026 11:00:00 +0000

Type Values Removed Values Added
First Time appeared Core Ftp
Core Ftp core Ftp Lite
Vendors & Products Core Ftp
Core Ftp core Ftp Lite

Fri, 06 Feb 2026 23:30:00 +0000

Type Values Removed Values Added
Description Core FTP Lite 1.3 contains a buffer overflow vulnerability in the username input field that allows attackers to crash the application by supplying oversized input. Attackers can generate a 7000-byte payload of repeated 'A' characters to trigger an application crash without requiring additional interaction.
Title Core FTP Lite 1.3 - Denial of Service (PoC)
Weaknesses CWE-120
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

cvssV4_0

{'score': 6.7, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-02-06T23:14:09.188Z

Reserved: 2026-02-03T16:27:45.310Z

Link: CVE-2020-37155

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-02-07T00:15:55.600

Modified: 2026-02-07T00:15:55.600

Link: CVE-2020-37155

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-02-09T10:45:02Z

Weaknesses