How severe is CVE-2002-0821?

CVE-2002-0821 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2002-0821 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2002-0821?

CVE-2002-0821 affects Ethereal Group Ethereal. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2002-0821?

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-2002-0821 published?

CVE-2002-0821 was published on 2002-08-12 and last updated on 2026-06-16.

CVE-2002-0821

CVE-2002-0821 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: 3% (85th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Ethereal Group Ethereal
Published: 2002-08-12
Last modified: 2026-06-16

Description

Buffer overflows in Ethereal 0.9.4 and earlier allow remote attackers to cause a denial of service or execute arbitrary code via (1) the BGP dissector, or (2) the WCP dissector.

Frequently asked questions

What is CVE-2002-0821?: Buffer overflows in Ethereal 0.9.4 and earlier allow remote attackers to cause a denial of service or execute arbitrary code via (1) the BGP dissector, or (2) the WCP dissector.
How severe is CVE-2002-0821?: CVE-2002-0821 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2002-0821 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2002-0821?: CVE-2002-0821 affects Ethereal Group Ethereal. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2002-0821?: 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-2002-0821 published?: CVE-2002-0821 was published on 2002-08-12 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:ethereal_group:ethereal:*:*:*:*:*:*:*:*

More vulnerabilities in Ethereal Group Ethereal

CVE-2006-3632 — Critical (CVSS 10.0): Buffer overflow in Wireshark (aka Ethereal) 0.8.16 to 0.99.0 allows remote attackers to cause a denial of service and…
CVE-2006-3628 — Critical (CVSS 10.0): Multiple format string vulnerabilities in Wireshark (aka Ethereal) 0.10.x to 0.99.0 allow remote attackers to cause a…
CVE-2006-1932 — Critical (CVSS 10.0): Off-by-one error in the OID printing routine in Ethereal 0.10.x up to 0.10.14 has unknown impact and remote attack…
CVE-2005-3184 — Critical (CVSS 10.0): Buffer overflow vulnerability in the unicode_to_bytes in the Service Location Protocol (srvloc) dissector…
CVE-2004-0507 — Critical (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…
CVE-2003-0431 — Critical (CVSS 10.0): The tvb_get_nstringz0 function in Ethereal 0.9.12 and earlier does not properly handle a zero-length buffer size, with…

All CVEs affecting Ethereal Group Ethereal →