CVE-2020-37067
CWE-770Published: February 3, 2026· Updated: Jun 17, 2026
Official Description
Filetto 1.0 FTP server contains a denial of service vulnerability in the FEAT command processing that allows attackers to crash the service. Attackers can send an oversized FEAT command with 11,008 bytes of repeated characters to trigger a buffer overflow and terminate the FTP service.
Risk Analysis
Filetto 1.0 FTP server is vulnerable to a denial of service attack via the FEAT command, which can cause the service to crash. The high CVSS score reflects the critical impact on service availability.
There is no known public exploit for this vulnerability, and it is not in the CISA KEV catalog. It is remotely exploitable with low attack complexity.
Update to the latest version of the Filetto FTP server. Implement network-level protections to filter malicious traffic.
Technical Analysis
CVE-2020-37067 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.
CVSS v3.1 Vector Breakdown
Exploit & PoC Resources
All References (4)
Quick Facts
Related CVEs (CWE-770)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2020-37067 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts