CVE-2020-37155

HIGH

Core FTP Lite 1.3 - Buffer Overflow

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2020-37155. PoCs published by berat isler.

AI-analyzed exploit summary This exploit generates a large payload of 'A' characters (7000 bytes) to trigger a buffer overflow in Core FTP Lite 1.3, causing a denial of service when pasted into the username field. The PoC is functional but limited to DoS without further exploitation.

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.

Exploits (1)

exploitdb WORKING POC
by berat isler · pythondoswindows
https://www.exploit-db.com/exploits/48100

This exploit generates a large payload of 'A' characters (7000 bytes) to trigger a buffer overflow in Core FTP Lite 1.3, causing a denial of service when pasted into the username field. The PoC is functional but limited to DoS without further exploitation.

Classification
Working Poc 95%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: Core FTP Lite 1.3c Build 1437
No auth needed
Prerequisites: Core FTP Lite 1.3c Build 1437 installed on Windows 7 32-bit · Ability to paste payload into the username field
devstral-2 · analyzed Feb 18, 2026 Full analysis →

References (3)

Core 3
Core References
Exploit, Third Party Advisory exploit
https://www.exploit-db.com/exploits/48100
Various Sources product
http://www.coreftp.com/

Scores

CVSS v3 7.5
EPSS 0.0039
EPSS Percentile 30.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-120
Status published
Products (1)
Core FTP/Core FTP Lite 1.3c Build 1437
Published Feb 07, 2026
Tracked Since Feb 18, 2026