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CVE-2019-18217

46
FAUCET Score

CVE-2019-18217 is a denial-of-service vulnerability affecting ProFTPD versions prior to 1.3.6b and 1.3.7rc2. An unauthenticated remote attacker can trigger an infinite loop in a child process by sending an overly long command, leading to service disruption. This vulnerability has a CVSS score of 7.5 (High), indicating a network-based attack with low complexity and high impact on availability. While no active exploitation or public exploit code (Metasploit, ExploitDB) has been identified, Nuclei templates exist for detection. Community discussion and media coverage for this CVE are minimal.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.3.5CPE matchmatch criteria
cpe:2.3:a:proftpd:proftpd:*:*:*:*:*:*:*:*
1.3.6CPE matchmatch criteria
cpe:2.3:a:proftpd:proftpd:1.3.6:-:*:*:*:*:*:*
1.3.6CPE matchmatch criteria
cpe:2.3:a:proftpd:proftpd:1.3.6:a:*:*:*:*:*:*
1.3.6CPE matchmatch criteria
cpe:2.3:a:proftpd:proftpd:1.3.6:rc1:*:*:*:*:*:*
1.3.6CPE matchmatch criteria
cpe:2.3:a:proftpd:proftpd:1.3.6:rc2:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
19.51%
Probability of exploitation in next 30 days
EPSS Percentile
97.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
Nuclei: CVE-2019-18217 · Oct 2, 2025
This CVE's current EPSS score of 0.1951 is in the 96th percentile among its peer group of 51,553 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

lists.opensuse.org / opensuse-security-announce/2020-01/msg00009.html
cert-portal.siemens.com / productcert/pdf/ssa-940889.pdf
github.com / proftpd/proftpd/blob/1.3.6/NEWS
Release NotesThird Party Advisory
github.com / proftpd/proftpd/blob/1.3.6/RELEASE_NOTES
Release NotesThird Party Advisory
github.com / proftpd/proftpd/blob/master/NEWS
Release NotesThird Party Advisory
github.com / proftpd/proftpd/blob/master/RELEASE_NOTES
Release NotesThird Party Advisory
github.com / proftpd/proftpd/issues/846
ExploitIssue TrackingThird Party Advisory
lists.debian.org / debian-lts-announce/2019/10/msg00036.html
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/NJDQRVZTILBX4BUCTIRKP2WBHDHDCJR5
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/RB2FPAWDWXT5ALAFIC5Y3RSEMXSFL6H2
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/YLRPYEEMQJVAXO2SXRGOQ4HBFEEPCNXG
seclists.org / bugtraq/2019/Nov/7
security.gentoo.org / glsa/202003-35
debian.org / security/2019/dsa-4559