CVE-2020-37069Public exploitNetwork attack vector

Service crash via oversized NLST argument

Published Feb 3, 2026 · Updated Feb 3, 2026

Buffer overflow in Konica Minolta FTP Utility 1.0 allows remote attackers to crash the FTP server through a crafted NLST command. Processing a 1,500-byte NLST argument overruns the command buffer, overwrites CPU registers, and terminates the service. Anonymous FTP access on TCP port 21 is sufficient, no user interaction is required, and public evidence demonstrates a crash rather than code execution.

CVSS severity8.7
High
EPSS probability0.60%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Buffer overflow in Konica Minolta FTP Utility 1.0 allows remote attackers to crash the FTP server through a crafted NLST command. Processing a 1,500-byte NLST argument overruns the command buffer, overwrites CPU registers, and terminates the service. Anonymous FTP access on TCP port 21 is sufficient, no user interaction is required, and public evidence demonstrates a crash rather than code execution.

The record

CVE
CVE-2020-37069
Published
Feb 3, 2026
Updated
Feb 3, 2026
Vendor
Konica Minolta
Product
FTP Utility
Classifications
CWE-120, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 3, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 3, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Konica Minolta · FTP Utilityversion=1.0

Published CVSS scores

8.7VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
9.8VulnCheckCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
T1499.004Endpoint Denial of Service: Application or System Exploitation

Public exploit references

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Technologies

Your stack

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Your stack

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