CVE-2006-3629: Unspecified vulnerability in the MOUNT dissector in Wireshark (aka Ethereal) 0.9.4 to 0.99.0 allows remote att

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HIGH 7.8DOWNGRADE

CVE-2006-3629 is a high-severity flaw (CVSS 7.8) affecting ethereal. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Unspecified vulnerability in the MOUNT dissector in Wireshark (aka Ethereal) 0.9.4 to 0.99.0 allows remote attackers to cause a denial of service (memory consumption) via unspecified vectors.

Why this priority

High severity

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

Risk facts

CVSS score	7.8 (High)
EPSS exploit chance	3.0% (top 13%)
CISA exploited list	No
Published	2006-07-21
Last modified	2026-06-16

Publisher (CNA): Red Hat, Inc. · Vendor: ethereal group

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

Am I affected?

Timeline

2006-07-21 14:03 UTCPublished CVE record published
2026-06-16 22:27 UTCUpdated Record last modified

ethereal group ethereal DOWNGRADE

Affected: 0.9.4 · 0.9.5 · 0.9.6 · 0.9.7 · 0.9.8 · 0.9.9 · 0.9.10 · 0.9.11

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.9.4

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 0.9.4 (Debian / Ubuntu)

apt-cache madison ethereal sudo apt install ethereal=<VERSION_BEFORE_0.9.4> sudo apt-mark hold ethereal

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

dnf --showduplicates list ethereal sudo dnf downgrade ethereal-<VERSION_BEFORE_0.9.4> 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.

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-2006-3629?

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

Is CVE-2006-3629 being exploited?

CVE-2006-3629 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-2006-3629 affect?

CVE-2006-3629 affects ethereal. Severity is high (CVSS 7.8). Unspecified vulnerability in the MOUNT dissector in Wireshark (aka Ethereal) 0.9.4 to 0.99.0 allows remote attackers to cause a denial of service (memory consumption) via unspecified vectors.

How urgent is CVE-2006-3629?

Priority 49/100. High severity

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References

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