What is CVE-2020-37067?

CVE-2020-37067 is a critical-severity vulnerability in Utillyty Filetto, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 9.8/10. Published 2026-02-03.

How severe is CVE-2020-37067?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Resource exhaustion in Utillyty Filetto

CVE-2020-37067

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…

EPSS: 0.004 (29.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Utillyty Filetto — versions 1.0

Weakness classification (CWE)

CWE-770 — Allocation of Resources Without Limits or Throttling

References

disclosure@vulncheck.com (exploit)
disclosure@vulncheck.com (product)
disclosure@vulncheck.com (product)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2020-37067?: CVE-2020-37067 is a critical-severity vulnerability in Utillyty Filetto, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 9.8/10. Published 2026-02-03.
How severe is CVE-2020-37067?: Critical severity. CVSS v3 base score is 9.8 out of 10.