Vulnerability · Published Feb 3, 2026 · Assigned by VulnCheck
CVE-2020-37067Filetto 1.0 - 'FEAT' Denial of Service
Critical 9.8
In plain English
A critical-severity resource allocation without limits in Filetto from Utillyty. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 39% of all known vulnerabilities).
Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)0.4%top 61.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
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.
Affected products (as reported)
Weakness: CWE-770 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References
- ExploitDB-48503 exploit
- Vendor Homepage product
- Software Project Repository product
- VulnCheck Advisory: Filetto 1.0 - 'FEAT' Denial of Service third-party-advisory