CVE-2005-3589: Buffer overflow in FileZilla Server Terminal 0.9.4d may allow remote attackers to cause a denial of service (t

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HIGH 7.8DOWNGRADE

CVE-2005-3589 is a high-severity flaw (CVSS 7.8) affecting filezilla server terminal. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Buffer overflow in FileZilla Server Terminal 0.9.4d may allow remote attackers to cause a denial of service (terminal crash) via a long USER ftp command.

Why this priority

High severity
EPSS top 1%: very likely to be exploited
Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	7.8 (High)
EPSS exploit chance	52.9% (top 1%)
CISA exploited list	No
Published	2005-11-16
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: filezilla

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2005-11-16 07:42 UTCPublished CVE record published
2026-06-16 22:17 UTCUpdated Record last modified

filezilla filezilla server terminal DOWNGRADE

Affected: 0.9.4d

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.9.4d

1. Check installed version

apt-cache policy filezilla-server-terminal || rpm -q filezilla-server-terminal || filezilla-server-terminal --version

2. No fixed release: DOWNGRADE to a release before 0.9.4d (Debian / Ubuntu)

apt-cache madison filezilla-server-terminal sudo apt install filezilla-server-terminal=<VERSION_BEFORE_0.9.4d> sudo apt-mark hold filezilla-server-terminal

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list filezilla-server-terminal sudo dnf downgrade filezilla-server-terminal-<VERSION_BEFORE_0.9.4d> sudo dnf versionlock add filezilla-server-terminal

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Exploit-DB: FileZilla Server Terminal 0.9.4d - Buffer Overflow (PoC)
Metasploit: FileZilla FTP Server Admin Interface Denial of Service

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2005-3589?

filezilla server terminal: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2005-3589 being exploited?

CVE-2005-3589 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2005-3589 affect?

CVE-2005-3589 affects filezilla server terminal. Severity is high (CVSS 7.8). Buffer overflow in FileZilla Server Terminal 0.9.4d may allow remote attackers to cause a denial of service (terminal crash) via a long USER ftp command.

How urgent is CVE-2005-3589?

Priority 57/100. High severity; EPSS top 1%: very likely to be exploited; Public exploit reference

Software pages

FileZilla vulnerabilities

References

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