How severe is CVE-2002-0834?

CVE-2002-0834 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2002-0834 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2002-0834?

CVE-2002-0834 primarily affects Ethereal Group Ethereal. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2002-0834?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2002-0834 published?

CVE-2002-0834 was published on 2002-09-24 and last updated on 2026-06-16.

CVE-2002-0834

CVE-2002-0834 is a high-severity vulnerability in Ethereal Group Ethereal with a CVSS 2.0 base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: High (CVSS 2.0 base score 7.5)
EPSS exploit prediction: 2% (83rd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Ethereal Group Ethereal
Published: 2002-09-24
Last modified: 2026-06-16

Description

Buffer overflow in the ISIS dissector for Ethereal 0.9.5 and earlier allows remote attackers to cause a denial of service or execute arbitrary code via malformed packets.

Frequently asked questions

What is CVE-2002-0834?: Buffer overflow in the ISIS dissector for Ethereal 0.9.5 and earlier allows remote attackers to cause a denial of service or execute arbitrary code via malformed packets.
How severe is CVE-2002-0834?: CVE-2002-0834 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2002-0834 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2002-0834?: CVE-2002-0834 primarily affects Ethereal Group Ethereal. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2002-0834?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2002-0834 published?: CVE-2002-0834 was published on 2002-09-24 and last updated on 2026-06-16.

References

http://www.ethereal.com/appnotes/enpa-sa-00006.html

Affected products (8)

cpe:2.3:a:ethereal_group:ethereal:0.8:*:*:*:*:*:*:*
cpe:2.3:a:ethereal_group:ethereal:0.8.18:*:*:*:*:*:*:*
cpe:2.3:a:ethereal_group:ethereal:0.9.1:*:*:*:*:*:*:*
cpe:2.3:a:ethereal_group:ethereal:0.9.2:*:*:*:*:*:*:*
cpe:2.3:a:ethereal_group:ethereal:0.9.3:*:*:*:*:*:*:*
cpe:2.3:a:ethereal_group:ethereal:0.9.4:*:*:*:*:*:*:*
cpe:2.3:a:ethereal_group:ethereal:0.9.5:*:*:*:*:*:*:*
cpe:2.3:a:ethereal_group:ethereal:0.9_.0:*:*:*:*:*:*:*

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