CVE-2020-37155 MEDIUM

CVE-2020-37155: Core FTP Lite 1.3 - Denial of Service (PoC)

Vendor Core Ftp
Product Core FTP Lite
Weakness CWE-120
Published February 6, 2026
Last update February 17, 2026

CVSS base score

6.7/10
Attack vector Local
Attack complexity Low
Privileges required None
User interaction
Confidentiality
Integrity

CVSS 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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

February 6, 2026 CVE published
February 17, 2026 Record updated