CVE-2003-0397: Buffer overflow in FastTrack (FT) network code, as used in Kazaa 2.0.2 and possibly other versions and product

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HIGH 7.5DOWNGRADE

CVE-2003-0397 is a high-severity flaw (CVSS 7.5) affecting kazaa. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Buffer overflow in FastTrack (FT) network code, as used in Kazaa 2.0.2 and possibly other versions and products, allows remote attackers to execute arbitrary code via a packet containing a large list of supernodes, aka "Packet 0' death."

Why this priority

High severity
EPSS top 9%: very likely to be exploited

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

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	4.1% (top 9%)
CISA exploited list	No
Published	2003-07-02
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: sharman networks

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

Am I affected?

Timeline

2003-07-02 04:00 UTCPublished CVE record published
2026-06-16 22:02 UTCUpdated Record last modified

sharman networks kazaa DOWNGRADE

Affected: v2.0.2

Fixed in: no fixed release known

Safe to downgrade to: a release before v2.0.2

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before v2.0.2 (Debian / Ubuntu)

apt-cache madison kazaa sudo apt install kazaa=<VERSION_BEFORE_v2.0.2> sudo apt-mark hold kazaa

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

dnf --showduplicates list kazaa sudo dnf downgrade kazaa-<VERSION_BEFORE_v2.0.2> sudo dnf versionlock add kazaa

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-2003-0397?

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

Is CVE-2003-0397 being exploited?

CVE-2003-0397 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-2003-0397 affect?

CVE-2003-0397 affects kazaa. Severity is high (CVSS 7.5). Buffer overflow in FastTrack (FT) network code, as used in Kazaa 2.0.2 and possibly other versions and products, allows remote attackers to execute arbitrary code via a packet containing a large list of supernodes, aka "Packet 0' death."

How urgent is CVE-2003-0397?

Priority 49/100. High severity; EPSS top 9%: very likely to be exploited

Related CVEs

CVE-2002-0315 HIGH 7.5 DOWNGRADE DOWNGRADE fasttrack p2p, as used in (1) KaZaA, (2) grokster, and (3) morpheus allows remote attackers to spoof other use
CVE-2002-0314 MEDIUM 5.0 DOWNGRADE DOWNGRADE fasttrack p2p, as used in (1) KaZaA before 1.5, (2) grokster, and (3) morpheus allows remote attackers to caus

References

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