CVE-2002-0401

HIGHNVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.5 under NVD CVSS v3. EPSS exploit probability: 7.7%, top 8% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
7.5
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 6%CVSS: 7.5Exploit: NoneExposed: 0

A fix is available — apply it.

SMB dissector in Ethereal 0.9.3 and earlier allows remote attackers to cause a denial of service (crash) or execute arbitrary code via malformed packets that cause Ethereal to dereference a NULL pointer.

CVSS v3
7.5
EG Score
7.5(medium)
EPSS
91.9%
KEV
Not listed

Published

June 18, 2002

Last Modified

June 16, 2026

Advisory Details (6)

Auto-updated May 31, 2026
⚠️ Active exploitation confirmed. No patch confirmed yet.
generic
http://www.securityfocus.com/bid/4806
generic

Support

http://www.redhat.com/support/errata/RHSA-2002-088.html
generic

Support

http://www.redhat.com/support/errata/RHSA-2002-036.html
generic
http://www.ethereal.com/appnotes/enpa-sa-00004.html
generic

Debian -- The Universal Operating System

http://www.debian.org/security/2002/dsa-130
generic🔴 Active Exploitation

'Potential security issues in Ethereal' - MARC

http://marc.info/?l=bugtraq&m=102268626526119&w=2

Patch Availability(2)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatpatch2002-09-13redhat
redhatpatch2002-06-06redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

All Vendor Advisories

(2)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 3× in last 7d / 18× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-13 06:07 UTCEPSS rescore
  2. 2026-07-11 08:22 UTCEPSS rescore
  3. 2026-07-08 15:08 UTCEPSS rescore
  4. 2026-07-04 06:26 UTCEPSS rescore
  5. 2026-07-02 14:00 UTCEPSS rescore
  6. 2026-06-29 14:02 UTCEPSS rescore
  7. 2026-06-28 14:02 UTCEPSS rescore
  8. 2026-06-27 03:04 UTCEPSS rescore
  9. 2026-06-24 14:01 UTCEPSS rescore
  10. 2026-06-23 21:29 UTCEPSS rescore
  11. 2026-06-22 14:22 UTCEPSS rescore
  12. 2026-06-21 01:56 UTCEPSS rescore
  13. 2026-06-19 19:22 UTCEPSS rescore
  14. 2026-06-18 17:49 UTCEPSS rescore
  15. 2026-06-18 17:49 UTCEPSS rescore
  16. 2026-06-17 17:49 UTCEPSS rescore
  17. 2026-06-16 17:49 UTCEPSS rescore
  18. 2026-06-14 23:13 UTCEPSS rescore
  19. 2026-06-13 22:56 UTCEPSS rescore
  20. 2026-06-12 23:07 UTCEPSS rescore
  21. 2026-06-11 13:55 UTCEPSS rescore
  22. 2026-06-10 22:13 UTCEPSS rescore
  23. 2026-06-10 13:17 UTCEPSS rescore
  24. 2026-06-08 14:13 UTCEPSS rescore
  25. 2026-06-07 15:21 UTCEPSS rescore
Show 29 more
  1. 2026-06-06 13:44 UTCEPSS rescore
  2. 2026-06-05 06:07 UTCEPSS rescore
  3. 2026-06-04 13:09 UTCEPSS rescore
  4. 2026-06-02 20:10 UTCEPSS rescore
  5. 2026-06-01 13:48 UTCEPSS rescore
  6. 2026-05-31 22:27 UTCEPSS rescore
  7. 2026-05-31 19:25 UTCEG score recompute
  8. 2026-05-31 19:25 UTCVendor advisory
  9. 2026-05-31 19:25 UTCGHSA enrichment
  10. 2026-05-31 00:13 UTCEPSS rescore
  11. 2026-05-31 00:13 UTCEPSS rescore
  12. 2026-05-29 13:40 UTCEPSS rescore
  13. 2026-05-28 13:42 UTCEPSS rescore
  14. 2026-05-28 13:42 UTCEPSS rescore
  15. 2026-05-28 13:42 UTCEPSS rescore
  16. 2026-05-28 13:42 UTCEPSS rescore
  17. 2026-05-27 13:37 UTCEPSS rescore
  18. 2026-05-27 13:37 UTCEPSS rescore
  19. 2026-05-26 13:41 UTCEPSS rescore
  20. 2026-05-26 13:41 UTCEPSS rescore
  21. 2026-05-26 13:41 UTCEPSS rescore
  22. 2026-05-24 16:42 UTCEPSS rescore
  23. 2026-05-22 21:15 UTCEPSS rescore
  24. 2026-05-21 22:38 UTCEPSS rescore
  25. 2026-05-20 22:36 UTCEPSS rescore
  26. 2026-05-20 11:20 UTCEPSS rescore
  27. 2026-05-20 11:20 UTCEPSS rescore
  28. 2026-05-18 21:29 UTCEPSS rescore
  29. 2026-05-18 21:29 UTCEPSS rescore

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2002-0401?
CVE-2002-0401 is a high vulnerability published on June 18, 2002. SMB dissector in Ethereal 0.9.3 and earlier allows remote attackers to cause a denial of service (crash) or execute arbitrary code via malformed packets that cause Ethereal to dereference a NULL pointer.
When was CVE-2002-0401 disclosed?
CVE-2002-0401 was first published in the National Vulnerability Database on June 18, 2002, with the most recent update on June 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2002-0401 actively exploited?
CVE-2002-0401 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 91.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2002-0401?
CVE-2002-0401 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2002-0401?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2002-0401, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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