CVE-2005-2159: mshftp.dll in PlanetDNS PlanetFileServer 2.0.1.3 allows remote attackers to cause a denial of service (applica

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MEDIUM 5.0DOWNGRADE

CVE-2005-2159 is a medium-severity flaw (CVSS 5.0) affecting planetfileserver. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

mshftp.dll in PlanetDNS PlanetFileServer 2.0.1.3 allows remote attackers to cause a denial of service (application crash) via a long request.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	5.0 (Medium)
EPSS exploit chance	1.3% (top 29%)
CISA exploited list	No
Published	2005-07-06
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: planetdns

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

Am I affected?

Timeline

2005-07-06 04:00 UTCPublished CVE record published
2026-06-16 22:14 UTCUpdated Record last modified

planetdns planetfileserver DOWNGRADE

Affected: 2.0.1.3

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.0.1.3

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 2.0.1.3 (Debian / Ubuntu)

apt-cache madison planetfileserver sudo apt install planetfileserver=<VERSION_BEFORE_2.0.1.3> sudo apt-mark hold planetfileserver

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

dnf --showduplicates list planetfileserver sudo dnf downgrade planetfileserver-<VERSION_BEFORE_2.0.1.3> sudo dnf versionlock add planetfileserver

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-2005-2159?

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

Is CVE-2005-2159 being exploited?

CVE-2005-2159 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-2005-2159 affect?

CVE-2005-2159 affects planetfileserver. Severity is medium (CVSS 5.0). mshftp.dll in PlanetDNS PlanetFileServer 2.0.1.3 allows remote attackers to cause a denial of service (application crash) via a long request.

How urgent is CVE-2005-2159?

Priority 40/100. Public exploit reference

References

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