CVE-2006-6008: ftpd in Linux Netkit (linux-ftpd) 0.17, and possibly other versions, does not check the return status of certa

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MEDIUM 6.5WATCHLISTDOWNGRADE

CVE-2006-6008 is a medium-severity flaw (CVSS 6.5) affecting netkit. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

ftpd in Linux Netkit (linux-ftpd) 0.17, and possibly other versions, does not check the return status of certain seteuid, setgid, and setuid calls, which might allow remote authenticated users to gain privileges if these calls fail in cases such as PAM failures or resource limits, a different vulnerability than CVE-2006-5778.

Why this priority

On your watchlist

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

Risk facts

CVSS score	6.5 (Medium)
EPSS exploit chance	2.1% (top 19%)
CISA exploited list	No
Published	2006-11-21
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: netkit

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

Am I affected?

Timeline

2006-11-21 23:07 UTCPublished CVE record published
2026-06-16 22:32 UTCUpdated Record last modified

netkit netkit DOWNGRADE

Affected: 0.17

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.17

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 0.17 (Debian / Ubuntu)

apt-cache madison netkit sudo apt install netkit=<VERSION_BEFORE_0.17> sudo apt-mark hold netkit

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

dnf --showduplicates list netkit sudo dnf downgrade netkit-<VERSION_BEFORE_0.17> sudo dnf versionlock add netkit

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.

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-2006-6008?

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

Is CVE-2006-6008 being exploited?

CVE-2006-6008 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-2006-6008 affect?

CVE-2006-6008 affects netkit. Severity is medium (CVSS 6.5). ftpd in Linux Netkit (linux-ftpd) 0.17, and possibly other versions, does not check the return status of certain seteuid, setgid, and setuid calls, which might allow remote authenticated users to gain privileges if these calls fail in cases

How urgent is CVE-2006-6008?

Priority 48/100. On your watchlist

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References

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