THREATPORT/VULNERABILITY/CVE-2019-18217
HIGH SEVERITY

CVE-2019-18217

Proftpd vulnerability

CVSS
7.5
EPSS
19.5%
EPSS pct
97th
Exploited
No known
ProFTPD before 1.3.6b and 1.3.7rc before 1.3.7rc2 allows remote unauthenticated denial-of-service due to incorrect handling of overly long commands because main.c in a child process enters an infinite loop.
Affected vendor
Proftpd
Affected product
Proftpd
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness type (CWE)
  • CWE-835 — Loop with Unreachable Exit Condition (Infinite Loop)
Published
2019-10-21

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to availability.

Its EPSS score of 19.5% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 97% of all scored CVEs.

Check your external exposure to CVE-2019-18217

  • Confirm whether Proftpd Proftpd is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2019-18217.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2019-18217

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2019-18217 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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