CVE-2004-1948: NcFTP client 3.1.6 and 3.1.7, when the username and password are included in an FTP URL that is provided on th

Routine

MEDIUM 4.6DOWNGRADE

CVE-2004-1948 is a medium-severity flaw (CVSS 4.6) affecting ncftp. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

NcFTP client 3.1.6 and 3.1.7, when the username and password are included in an FTP URL that is provided on the command line, allows local users to obtain sensitive information via "ps aux," which displays the URL in the process list.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	4.6 (Medium)
EPSS exploit chance	0.5% (top 60%)
CISA exploited list	No
Published	2004-04-20
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: ncftp software

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

Am I affected?

Timeline

2004-04-20 04:00 UTCPublished CVE record published
2026-06-16 22:08 UTCUpdated Record last modified

ncftp software ncftp DOWNGRADE

Affected: 3.0.0 · 3.0.1 · 3.0.2 · 3.0.3 · 3.0.4 · 3.1.0 · 3.1.1 · 3.1.2

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.0.0

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 3.0.0 (Debian / Ubuntu)

apt-cache madison ncftp sudo apt install ncftp=<VERSION_BEFORE_3.0.0> sudo apt-mark hold ncftp

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

dnf --showduplicates list ncftp sudo dnf downgrade ncftp-<VERSION_BEFORE_3.0.0> sudo dnf versionlock add ncftp

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-2004-1948?

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

Is CVE-2004-1948 being exploited?

CVE-2004-1948 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-2004-1948 affect?

CVE-2004-1948 affects ncftp. Severity is medium (CVSS 4.6). NcFTP client 3.1.6 and 3.1.7, when the username and password are included in an FTP URL that is provided on the command line, allows local users to obtain sensitive information via "ps aux," which displays the URL in the process list.

How urgent is CVE-2004-1948?

Priority 31/100. Public exploit reference

Related CVEs

CVE-2002-1345 MEDIUM 5.0 DOWNGRADE MITIGATE Directory traversal vulnerabilities in multiple FTP clients on UNIX systems allow remote malicious FTP servers

References

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