CVE-2004-0600: Buffer overflow in the Samba Web Administration Tool (SWAT) in Samba 3.0.2 to 3.0.4 allows remote attackers to

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HIGH 10.0WATCHLISTDOWNGRADEMITIGATE

CVE-2004-0600 is a high-severity flaw (CVSS 10.0) affecting samba, secure linux. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Buffer overflow in the Samba Web Administration Tool (SWAT) in Samba 3.0.2 to 3.0.4 allows remote attackers to execute arbitrary code via an invalid base-64 character during HTTP basic authentication.

Why this priority

Critical severity
EPSS top 2%: very likely to be exploited
Public exploit reference
On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	10.0 (High)
EPSS exploit chance	29.4% (top 2%)
CISA exploited list	No
Published	2004-07-27
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: samba · trustix

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

Am I affected?

Timeline

2004-07-27 04:00 UTCPublished CVE record published
2026-06-16 22:05 UTCUpdated Record last modified

samba samba DOWNGRADE

Affected: 3.0.2 · 3.0.2a · 3.0.3 · 3.0.4

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.0.2

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 3.0.2 (Debian / Ubuntu)

apt-cache madison samba sudo apt install samba=<VERSION_BEFORE_3.0.2> sudo apt-mark hold samba

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

dnf --showduplicates list samba sudo dnf downgrade samba-<VERSION_BEFORE_3.0.2> sudo dnf versionlock add samba

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.

trustix secure linux MITIGATE

Affected: 1.5 · 2.0 · 2.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.5

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Exact fixes by distribution

A distro patch exists: prefer upgrading over downgrading.

Fedora ELN · fuse-sshfs · FIXED · 3.7.6-3.eln159 · FEDORA-2026-bcb7be7c5c · source

sudo dnf upgrade --advisory=FEDORA-2026-bcb7be7c5c

Fedora 46 · python-odata-query · FIXED · 0.10.1-1.fc46 · FEDORA-2026-eab44dc513 · source

sudo dnf upgrade --advisory=FEDORA-2026-eab44dc513

Debian 12 · samba · FIXED · 3.0.5

sudo apt update && sudo apt install --only-upgrade samba dpkg --compare-versions "$(dpkg-query -W -f='${Version}' samba)" ge "3.0.5" && echo PATCHED || echo STILL-VULNERABLE

Debian 13 · samba · FIXED · 3.0.5

sudo apt update && sudo apt install --only-upgrade samba dpkg --compare-versions "$(dpkg-query -W -f='${Version}' samba)" ge "3.0.5" && echo PATCHED || echo STILL-VULNERABLE

RHEL 3 · samba · FIXED · samba-3.0.4-6.3E

sudo dnf upgrade --advisory=RHSA-2004:259 rpm -q samba

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Exploit-DB: Samba 3.0.4 - SWAT Authorisation Buffer Overflow

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-2004-0600?

samba: downgrade or apply the listed mitigation; secure linux: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2004-0600 being exploited?

CVE-2004-0600 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-2004-0600 affect?

CVE-2004-0600 affects samba, secure linux. Severity is high (CVSS 10.0). Buffer overflow in the Samba Web Administration Tool (SWAT) in Samba 3.0.2 to 3.0.4 allows remote attackers to execute arbitrary code via an invalid base-64 character during HTTP basic authentication.

How urgent is CVE-2004-0600?

Priority 70/100. Critical severity; EPSS top 2%: very likely to be exploited; Public exploit reference; On your watchlist

Software pages

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References

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