CVE-2020-37069CWE-120

Konica Minolta FTP Utility 1.0 - 'NLST' Denial of Service

High · published February 3, 2026

CVSS v4.0
8.7
EPSS
1%
Percentile
51.3
In the wild
Unconfirmed
What it is

⚡ A crafty attacker can crash the Konica Minolta FTP Utility with a mere 1500 'A' characters! This buffer overflow vulnerability is your cue to act quickly! Think of it like a crowded elevator where someone keeps pressing the buttons — eventually, it overwhelms the system and forces it to stop functioning entirely. In this case, an oversized buffer is the rogue passenger, causing chaos in your server! If exploited, an attacker can not only crash your FTP server but also overwrite critical system registers, leaving the door wide open for unauthorized code execution. This could lead to a complete system compromise, making it a serious threat that you definitely want to avoid!

Put simply

Think of it like a crowded elevator where someone keeps pressing the buttons — eventually, it overwhelms the system and forces it to stop functioning entirely. In this case, an oversized buffer is the rogue passenger, causing chaos in your server! CVE-2020-37069 is a buffer overflow vulnerability in the NLST command of the Konica Minolta FTP Utility 1.0, allowing attackers to send a crafted input that exceeds the buffer size, leading to potential execution of arbitrary code.

What to do

If exploited, an attacker can not only crash your FTP server but also overwrite critical system registers, leaving the door wide open for unauthorized code execution. This could lead to a complete system compromise, making it a serious threat that you definitely want to avoid! Immediately patch your Konica Minolta FTP Utility to the latest version to mitigate this vulnerability. Additionally, consider implementing input validation measures to prevent oversized input from being processed in the future. Regularly monitor your systems for any suspicious activity as an extra precaution! You've got this! By taking these steps, you're reinforcing your defenses and keeping your systems safe! 🛡️

The record
Technical detail
CVSS v4.0
8.7 · HIGH
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
EPSS
0.00668 · 51.3th percentile
Weakness
CWE-120 · Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Published
2026-02-03T22:01Z
EPSS history
Timeline
  • 03 FEB 22:01Z
    Konica Minolta FTP Utility 1.0 - 'NLST' Denial of Service
    cvelistv5