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TI-2018-14671 Aliases CVE-2018-20658GHSA-7wjj-g2fp-6r9j

The server in Core FTP 2.0 build 653 on 32-bit platforms allows remote attackers to cause…

Priority MEDIUM 44CWE-20Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA.

Summary

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.

Why it matters now

EPSS 0.08493 95th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA and NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:coreftp:core_ftp:2.0:*:*:*:*:*:x86:*2.0VulnerableCoreftp
  • cpe:2.3:a:coreftp:core_ftp:2.0:*:*:*:*:*:x86:* Versions 2.0 Vulnerable ·Coreftp

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-20658
  2. 2026-10-03 Alias added: GHSA-7wjj-g2fp-6r9j
  3. 2026-10-21 EPSS moved to the 95th–99th percentile
  4. 2026-10-25 EPSS moved to the 90th–95th percentile
  5. 2026-10-27 EPSS moved to the 95th–99th percentile

References

Exploit 1

Advisory 1

  • TI-2019-15738 Core FTP 2.0 build 653 PBSZ Unauthenticated Denial of Service CVSS 4.0HIGH 8.7
  • TI-2019-15707 Core FTP/SFTP Server 1.2 Denial of Service via Buffer Overflow CVSS 4.0HIGH 8.7
  • TI-2018-08689 Core FTP LE version 2.2 Build 1921 is prone to a buffer overflow vulnerability that may… CVSS 3.0CRITICAL 9.8
  • TI-2009-03322 Stack-based buffer overflow in Core FTP 2.1 build 1612 allows user-assisted remote… CVSS 2.0HIGH 9.3
  • TI-2013-03432 Stack-based buffer overflow in Core FTP before 2.2 build 1785 allows remote FTP servers… CVSS 2.0HIGH 9.3
  • TI-2020-13650 Buffer overflow vulnerability in Core FTP Server v1.2 Build 583, via a crafted username. CVSS 3.1CRITICAL 9.8
See all 17 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences