Local Buffer Overflow in FTPDummy 4.80 Enables Code Execution

Publication date: 2026-01-30

Last updated on: 2026-01-30

Assigner: VulnCheck

Description

FTPDummy 4.80 contains a local buffer overflow vulnerability in its preference file handling that allows attackers to execute arbitrary code. Attackers can craft a malicious preference file with carefully constructed shellcode to trigger a structured exception handler overwrite and execute system commands.

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-01-30

Last Modified

2026-01-30

Generated

2026-07-06

AI Q&A

2026-01-31

EPSS Evaluated

2026-07-05

NVD

CVE-2020-37029

Affected Vendors & Products

Vendor	Product	Version / Range
unknown_vendor	ftpdummy	4.80

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-120	The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer.

Attack-Flow Graph

Executive Summary

This vulnerability is a local buffer overflow in FTPDummy 4.80's preference file handling. It allows attackers to create a malicious preference file containing specially crafted shellcode that overwrites the structured exception handler, enabling them to execute arbitrary system commands.

Impact Analysis

The vulnerability can lead to arbitrary code execution on the affected system, potentially allowing attackers to run malicious commands with the privileges of the user running FTPDummy. This can result in system compromise, data loss, or unauthorized access.

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