Arcane Software’s Vermillion FTP Daemon (vftpd) versions up to and including 1.31 contains a memory corruption vulnerability triggered by a malformed FTP PORT command. The flaw arises from an out-of-bounds array access during input parsing, allowing an attacker to manipulate stack memory and potentially execute arbitrary code. Exploitation requires direct access to the FTP service and is constrained by a single execution attempt if the daemon is installed as a Windows service.
https://www.vulncheck.com/advisories/vermillion-ftp-daemon-port-command-memory-corruption
https://www.juniper.net/us/en/threatlabs/ips-signatures/detail.FTP:EXPLOIT:VERMILLION-PORT-OF.html
https://www.exploit-db.com/exploits/11293
https://www.broadcom.com/support/security-center/attacksignatures/detail?asid=23681
https://web.archive.org/web/20100213162028/http://www.softsea.com/review/Vermillion-FTP-Daemon.html
Published: 2025-08-21
Updated: 2026-04-15
Base Score: 10
Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C
Severity: Critical
Base Score: 9.8
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Severity: Critical
Base Score: 9.3
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Severity: Critical
EPSS: 0.0086