CVE-2020-37069
Published: 03 February 2026
Summary
CVE-2020-37069 is a high-severity Classic Buffer Overflow (CWE-120) vulnerability in Konicaminolta Ftp Utility. Its CVSS base score is 8.7 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 43.0th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
The strongest mitigations our analysis identified are NIST 800-53 SI-10 (Information Input Validation) and SI-16 (Memory Protection).
Deeper analysis
CVE-2020-37069 is a buffer overflow vulnerability (CWE-120) in the NLST command of Konica Minolta FTP Utility version 1.0. The flaw enables attackers to overwrite system registers by sending an oversized buffer, such as 1500 'A' characters, to the affected FTP server component.
Remote attackers can exploit this vulnerability over the network (AV:N) with low attack complexity (AC:L), no privileges (PR:N), and no user interaction (UI:N) required. Exploitation crashes the FTP server and can potentially result in execution of unauthorized code, earning a CVSS v3.1 base score of 9.8 (C:H/I:H/A:H).
Advisories and related resources include a VulnCheck entry detailing the Konica Minolta FTP Utility NLST denial-of-service, an Exploit-DB entry (48502) with a proof-of-concept, the official Konica Minolta U.S. website, and a software download page for the utility. No patches or specific mitigations are detailed in the provided references.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2020-31009
Vulnerability details
Konica Minolta FTP Utility 1.0 contains a buffer overflow vulnerability in the NLST command that allows attackers to overwrite system registers. Attackers can send an oversized buffer of 1500 'A' characters to crash the FTP server and potentially execute unauthorized…
more
code.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
The vulnerability is a remotely exploitable buffer overflow in a public-facing FTP server component (NLST command), directly enabling exploitation of public-facing applications for potential RCE or DoS.
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
Directly remediates the buffer overflow vulnerability in the Konica Minolta FTP Utility's NLST command through timely identification, reporting, and patching of the flaw.
Enforces validation of NLST command inputs to reject oversized buffers like 1500 'A' characters, preventing the buffer overflow exploitation.
Provides memory protections such as DEP and ASLR to block unauthorized code execution from register overwrites caused by the buffer overflow.