CVE-2004-0911: telnetd for netkit 0.17 and earlier, and possibly other versions, on Debian GNU/Linux allows remote attackers

Q: How do I fix CVE-2004-0911?

netkit: upgrade to newer than 0.17. Exact commands for each OS are on this page.

Q: Is CVE-2004-0911 being exploited?

CVE-2004-0911 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-2004-0911 affect?

CVE-2004-0911 affects netkit. Severity is medium (CVSS 5.0). telnetd for netkit 0.17 and earlier, and possibly other versions, on Debian GNU/Linux allows remote attackers to cause a denial of service (free of an invalid pointer), a different vulnerability than CVE-2001-0554.

Q: How urgent is CVE-2004-0911?

Priority 44/100. On your watchlist

This month

MEDIUM 5.0WATCHLISTUPGRADE

CVE-2004-0911 is a medium-severity flaw (CVSS 5.0) affecting netkit. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

telnetd for netkit 0.17 and earlier, and possibly other versions, on Debian GNU/Linux allows remote attackers to cause a denial of service (free of an invalid pointer), a different vulnerability than CVE-2001-0554.

Why this priority

On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	5.0 (Medium)
EPSS exploit chance	2.6% (top 15%)
CISA exploited list	No
Published	2004-11-03
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: debian

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

Am I affected?

Timeline

2004-11-03 05:00 UTCPublished CVE record published
2026-06-16 22:06 UTCUpdated Record last modified

debian netkit UPGRADE

Affected: <= 0.17

Fixed in: newer than 0.17

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 0.17 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade netkit

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-2004-0911?

netkit: upgrade to newer than 0.17. Exact commands for each OS are on this page.

Is CVE-2004-0911 being exploited?

CVE-2004-0911 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-2004-0911 affect?

CVE-2004-0911 affects netkit. Severity is medium (CVSS 5.0). telnetd for netkit 0.17 and earlier, and possibly other versions, on Debian GNU/Linux allows remote attackers to cause a denial of service (free of an invalid pointer), a different vulnerability than CVE-2001-0554.

How urgent is CVE-2004-0911?

Priority 44/100. On your watchlist

Software pages

Debian vulnerabilities

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References

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