How severe is CVE-2000-0333?

CVE-2000-0333 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2000-0333 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 8% (94th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2000-0333?

CVE-2000-0333 primarily affects Ethereal Group Ethereal. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2000-0333?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2000-0333 published?

CVE-2000-0333 was published on 1999-05-31 and last updated on 2026-06-16.

CVE-2000-0333

CVE-2000-0333 is a medium-severity vulnerability in Ethereal Group Ethereal with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 8% (94th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Ethereal Group Ethereal
Published: 1999-05-31
Last modified: 2026-06-16

Description

tcpdump, Ethereal, and other sniffer packages allow remote attackers to cause a denial of service via malformed DNS packets in which a jump offset refers to itself, which causes tcpdump to enter an infinite loop while decompressing the packet.

Frequently asked questions

What is CVE-2000-0333?: tcpdump, Ethereal, and other sniffer packages allow remote attackers to cause a denial of service via malformed DNS packets in which a jump offset refers to itself, which causes tcpdump to enter an infinite loop while decompressing the packet.
How severe is CVE-2000-0333?: CVE-2000-0333 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2000-0333 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 8% (94th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2000-0333?: CVE-2000-0333 primarily affects Ethereal Group Ethereal. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2000-0333?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2000-0333 published?: CVE-2000-0333 was published on 1999-05-31 and last updated on 2026-06-16.

References

Affected products (5)

cpe:2.3:a:ethereal_group:ethereal:0.8.4:*:*:*:*:*:*:*
cpe:2.3:a:ethereal_group:ethereal:0.8.5:*:*:*:*:*:*:*
cpe:2.3:a:ethereal_group:ethereal:0.8.6:*:*:*:*:*:*:*
cpe:2.3:a:lbl:tcpdump:3.4:*:*:*:*:*:*:*
cpe:2.3:a:lbl:tcpdump:3.5a:*:*:*:*:*:*:*

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