CVE-2018-20658

HIGH

Core FTP 2.0 build 653 - Denial of Service via XRMD Command

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2018-20658. PoCs published by Erik David Martin.

AI-analyzed exploit summary This exploit targets Core FTP Server 2.0 (build 653) by sending a malformed 'XRMD' command with a junk payload, causing a denial of service (DoS). It requires authentication but works with any valid credentials, including anonymous.

Description

The server in Core FTP 2.0 build 653 on 32-bit platforms allows remote attackers to cause a denial of service (daemon crash) via a crafted XRMD command.

Exploits (1)

exploitdb WORKING POC
by Erik David Martin · pythondoswindows
https://www.exploit-db.com/exploits/45091

This exploit targets Core FTP Server 2.0 (build 653) by sending a malformed 'XRMD' command with a junk payload, causing a denial of service (DoS). It requires authentication but works with any valid credentials, including anonymous.

Classification
Working Poc 95%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: Core FTP Server 2.0, build 653, 32-bit
Auth required
Prerequisites: Network access to the target FTP server · Valid credentials (any user)
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (2)

Core 2
Core References
Exploit, Third Party Advisory, VDB Entry exploit x_refsource_exploit-db
https://www.exploit-db.com/exploits/45091
Third Party Advisory x_refsource_misc
http://coreftp.com/forums/viewtopic.php?f=15&t=4022509

Scores

CVSS v3 7.5
EPSS 0.0849
EPSS Percentile 94.3%
Attack Vector NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-20
Status published
Products (1)
coreftp/core_ftp 2.0
Published Jan 02, 2019
Tracked Since Feb 18, 2026