CVE-2003-0596: FDclone 2.00a, and other versions before 2.02a, creates temporary directories with predictable names and uses

Routine

LOW 3.6DOWNGRADE

CVE-2003-0596 is a low-severity flaw (CVSS 3.6) affecting fdclone. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

FDclone 2.00a, and other versions before 2.02a, creates temporary directories with predictable names and uses them if they already exist, which allows local users to read or modify files of other fdclone users by creating the directory ahead of time.

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	3.6 (Low)
EPSS exploit chance	0.4% (top 69%)
CISA exploited list	No
Published	2003-08-27
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: fdclone

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

Am I affected?

Timeline

2003-08-27 04:00 UTCPublished CVE record published
2026-06-16 22:02 UTCUpdated Record last modified

fdclone fdclone DOWNGRADE

Affected: 2.00a

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.00a

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 2.00a (Debian / Ubuntu)

apt-cache madison fdclone sudo apt install fdclone=<VERSION_BEFORE_2.00a> sudo apt-mark hold fdclone

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

dnf --showduplicates list fdclone sudo dnf downgrade fdclone-<VERSION_BEFORE_2.00a> sudo dnf versionlock add fdclone

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-2003-0596?

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

Is CVE-2003-0596 being exploited?

CVE-2003-0596 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-2003-0596 affect?

CVE-2003-0596 affects fdclone. Severity is low (CVSS 3.6). FDclone 2.00a, and other versions before 2.02a, creates temporary directories with predictable names and uses them if they already exist, which allows local users to read or modify files of other fdclone users by creating the directory ahea

How urgent is CVE-2003-0596?

Priority 20/100. No elevated risk signals yet.

References

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