CVE-2004-1641: Heap-based buffer overflow in Titan FTP 3.21 and earlier allows remote attackers to cause a denial of service

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MEDIUM 5.0DOWNGRADE

CVE-2004-1641 is a medium-severity flaw (CVSS 5.0) affecting titan ftp server. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Heap-based buffer overflow in Titan FTP 3.21 and earlier allows remote attackers to cause a denial of service (crash) via a long FTP command such as (1) CWD, (2) STAT, or (3) LIST.

Why this priority

EPSS top 5%: very likely to be exploited
Public exploit reference

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

Risk facts

CVSS score	5.0 (Medium)
EPSS exploit chance	8.2% (top 5%)
CISA exploited list	No
Published	2004-08-29
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: south river technologies

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

Am I affected?

Timeline

2004-08-29 04:00 UTCPublished CVE record published
2026-06-16 22:08 UTCUpdated Record last modified

south river technologies titan ftp server DOWNGRADE

Affected: 2.2 · 2.10 · 3.01 · 3.10 · 3.21

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.2

1. Check installed version

apt-cache policy titan-ftp-server || rpm -q titan-ftp-server || titan-ftp-server --version

2. No fixed release: DOWNGRADE to a release before 2.2 (Debian / Ubuntu)

apt-cache madison titan-ftp-server sudo apt install titan-ftp-server=<VERSION_BEFORE_2.2> sudo apt-mark hold titan-ftp-server

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

dnf --showduplicates list titan-ftp-server sudo dnf downgrade titan-ftp-server-<VERSION_BEFORE_2.2> sudo dnf versionlock add titan-ftp-server

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: Titan FTP Server - Long Command Heap Overflow
Nuclei scan template: Titan FTP ≤ 3.21 - Heap Overflow via Long Commands

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-2004-1641?

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

Is CVE-2004-1641 being exploited?

CVE-2004-1641 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-2004-1641 affect?

CVE-2004-1641 affects titan ftp server. Severity is medium (CVSS 5.0). Heap-based buffer overflow in Titan FTP 3.21 and earlier allows remote attackers to cause a denial of service (crash) via a long FTP command such as (1) CWD, (2) STAT, or (3) LIST.

How urgent is CVE-2004-1641?

Priority 46/100. EPSS top 5%: very likely to be exploited; Public exploit reference

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References

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