CVE-2004-0507: Buffer overflow in the MMSE dissector for Ethereal 0.10.1 to 0.10.3 allows remote attackers to cause a denial

This month

HIGH 10.0DOWNGRADEDOWNGRADE

CVE-2004-0507 is a high-severity flaw (CVSS 10.0) affecting ethereal, propack. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Buffer overflow in the MMSE dissector for Ethereal 0.10.1 to 0.10.3 allows remote attackers to cause a denial of service and possibly execute arbitrary code.

Why this priority

Critical severity
EPSS top 5%: very likely to be exploited

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

Risk facts

CVSS score	10.0 (High)
EPSS exploit chance	7.6% (top 5%)
CISA exploited list	No
Published	2004-08-18
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: ethereal group · sgi

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

Am I affected?

Timeline

2004-08-18 04:00 UTCPublished CVE record published
2026-06-16 22:05 UTCUpdated Record last modified

ethereal group ethereal DOWNGRADE

Affected: 0.10.1 · 0.10.2 · 0.10.3

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.10.1

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 0.10.1 (Debian / Ubuntu)

apt-cache madison ethereal sudo apt install ethereal=<VERSION_BEFORE_0.10.1> sudo apt-mark hold ethereal

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

dnf --showduplicates list ethereal sudo dnf downgrade ethereal-<VERSION_BEFORE_0.10.1> sudo dnf versionlock add ethereal

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.

sgi propack DOWNGRADE

Affected: 2.4 · 3.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.4

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 2.4 (Debian / Ubuntu)

apt-cache madison propack sudo apt install propack=<VERSION_BEFORE_2.4> sudo apt-mark hold propack

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

dnf --showduplicates list propack sudo dnf downgrade propack-<VERSION_BEFORE_2.4> sudo dnf versionlock add propack

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-2004-0507?

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

Is CVE-2004-0507 being exploited?

CVE-2004-0507 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-2004-0507 affect?

CVE-2004-0507 affects ethereal, propack. Severity is high (CVSS 10.0). Buffer overflow in the MMSE dissector for Ethereal 0.10.1 to 0.10.3 allows remote attackers to cause a denial of service and possibly execute arbitrary code.

How urgent is CVE-2004-0507?

Priority 59/100. Critical severity; EPSS top 5%: very likely to be exploited

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References

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