CVE-2004-0376: oftpd 0.3.6 and earlier allows remote attackers to cause a denial of service (crash) via a PORT command with a

Q: How do I fix CVE-2004-0376?

oftpd: upgrade to newer than 0.3.6. Exact commands for each OS are on this page.

Q: Is CVE-2004-0376 being exploited?

CVE-2004-0376 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2004-0376 affect?

CVE-2004-0376 affects oftpd. Severity is medium (CVSS 5.0). oftpd 0.3.6 and earlier allows remote attackers to cause a denial of service (crash) via a PORT command with a large value.

Q: How urgent is CVE-2004-0376?

Priority 37/100. No elevated risk signals yet.

Routine

MEDIUM 5.0UPGRADE

CVE-2004-0376 is a medium-severity flaw (CVSS 5.0) affecting oftpd. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

oftpd 0.3.6 and earlier allows remote attackers to cause a denial of service (crash) via a PORT command with a large value.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	5.0 (Medium)
EPSS exploit chance	1.8% (top 22%)
CISA exploited list	No
Published	2004-05-04
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: oftpd

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

Am I affected?

Timeline

2004-05-04 04:00 UTCPublished CVE record published
2026-06-16 22:05 UTCUpdated Record last modified

oftpd oftpd UPGRADE

Affected: <= 0.3.6

Fixed in: newer than 0.3.6

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy oftpd || rpm -q oftpd || oftpd --version

2. UPGRADE to newer than 0.3.6 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade oftpd

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade oftpd

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

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-2004-0376?

oftpd: upgrade to newer than 0.3.6. Exact commands for each OS are on this page.

Is CVE-2004-0376 being exploited?

CVE-2004-0376 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-2004-0376 affect?

CVE-2004-0376 affects oftpd. Severity is medium (CVSS 5.0). oftpd 0.3.6 and earlier allows remote attackers to cause a denial of service (crash) via a PORT command with a large value.

How urgent is CVE-2004-0376?

Priority 37/100. No elevated risk signals yet.

Related CVEs

CVE-2006-6767 HIGH 7.5 UPGRADE oftpd before 0.3.7 allows remote attackers to cause a denial of service (daemon abort) via a (1) LPRT or (2) L
CVE-2005-2239 MEDIUM 5.0 DOWNGRADE oftpd 0.3.7 allows remote attackers to cause a denial of service via a USER command with a large number of nul

References

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