CVE-2006-3493

MEDIUMCVSS v2 · 5.15.1—
EchelonGraph scoreLOW confidence

This CVE was only ever scored under CVSS v2.0. NVD CVSS v2.0 base 5.1 — v2 rates that MEDIUM (v2 bands: LOW 0.0–3.9 / MEDIUM 4.0–6.9 / HIGH 7.0–10.0; v2 has no CRITICAL band). Vector AV:N/AC:H/Au:N/C:P/I:P/A:P. CVSS v2 is an older, coarser metric than v3.1/v4.0 (no Scope, no User Interaction, no Attack Requirements), so it is not directly comparable to a v3 or v4 score. NVD has never re-scored this record under v3. EPSS predicts 40.4% exploitation probability in the next 30 days, which is reflected in EG Risk but does not lift the v2 base. Confidence: LOW.

Sources: epss, nvd_v2
Weaponized
5.1EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 40%CVSS v2: 5.1Exploit: Exploit-DB (verified) · epss top5pct · public exploitExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

Buffer overflow in LsCreateLine function (mso_203) in mso.dll and mso9.dll, as used by Microsoft Word and possibly other products in Microsoft Office 2003, 2002, and 2000, allows remote user-assisted attackers to cause a denial of service (crash) via a crafted Word DOC or other Office file type. NOTE: this issue was originally reported to allow code execution, but on 20060710 Microsoft stated that code execution is not possible, and the original researcher agrees.

CVSS v2.0 (legacy)
5.1MEDIUMNVD never assigned a CVSS v3 rating to this CVE
EG Score
5.1(low)
EG Risk
53(Track)
EG Risk 53/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity51% × 45%
Exploitation65% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
40%
EPSS %ILE
99%
KEV
Not listed

Published

July 10, 2006

Last Modified

April 16, 2026

References (20)

Data Freshness Timeline

(refreshed 3× in last 7d / 4× 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. 2026-09-10 09:23 UTCEPSS rescore
  2. 2026-09-05 15:21 UTCEPSS rescore
  3. 2026-09-04 04:59 UTCEPSS rescore
  4. 2026-08-30 01:14 UTCEPSS rescore
  5. 2026-08-04 15:03 UTCEPSS rescore
  6. 2026-08-03 10:27 UTCEPSS rescore
  7. 2026-07-26 13:29 UTCEG score recompute▲ 5.10
  8. 2026-07-24 14:11 UTCEPSS rescore
  9. 2026-07-23 00:50 UTCEG score recompute
  10. 2026-07-23 00:30 UTCEG score recompute▼ 1.70
  11. 2026-07-22 23:55 UTCEG score recompute▲ 1.70
  12. 2026-07-22 21:34 UTCEG score recompute
  13. 2026-07-20 17:02 UTCEPSS rescore
  14. 2026-07-18 09:59 UTCEPSS rescore
  15. 2026-07-16 16:58 UTCEPSS rescore
  16. 2026-07-15 16:53 UTCEPSS rescore
  17. 2026-07-15 01:55 UTCEPSS rescore
  18. 2026-07-13 22:25 UTCEPSS rescore
  19. 2026-07-13 06:07 UTCEPSS rescore
  20. 2026-07-13 06:07 UTCEPSS rescore
  21. 2026-07-11 08:22 UTCEPSS rescore
  22. 2026-07-09 19:03 UTCEPSS rescore
  23. 2026-07-02 14:00 UTCEPSS rescore
  24. 2026-07-01 15:01 UTCEPSS rescore
  25. 2026-06-27 03:04 UTCEPSS rescore
Show 49 more
  1. 2026-06-25 13:46 UTCEPSS rescore
  2. 2026-06-23 21:29 UTCEPSS rescore
  3. 2026-06-23 21:29 UTCEPSS rescore
  4. 2026-06-22 14:22 UTCEPSS rescore
  5. 2026-06-21 01:56 UTCEPSS rescore
  6. 2026-06-18 17:49 UTCEPSS rescore
  7. 2026-06-18 17:49 UTCEPSS rescore
  8. 2026-06-17 17:49 UTCEPSS rescore
  9. 2026-06-17 17:49 UTCEPSS rescore
  10. 2026-06-16 17:49 UTCEPSS rescore
  11. 2026-06-16 17:49 UTCEPSS rescore
  12. 2026-06-15 17:44 UTCEPSS rescore
  13. 2026-06-13 22:56 UTCEPSS rescore
  14. 2026-06-12 23:08 UTCEPSS rescore
  15. 2026-06-11 13:55 UTCEPSS rescore
  16. 2026-06-10 22:14 UTCEPSS rescore
  17. 2026-06-10 13:17 UTCEPSS rescore
  18. 2026-06-06 13:44 UTCEPSS rescore
  19. 2026-06-06 13:44 UTCEPSS rescore
  20. 2026-06-05 22:43 UTCEPSS rescore
  21. 2026-06-05 06:07 UTCEPSS rescore
  22. 2026-06-05 06:07 UTCEPSS rescore
  23. 2026-06-02 20:10 UTCEPSS rescore
  24. 2026-06-02 20:10 UTCEPSS rescore
  25. 2026-06-01 13:49 UTCEPSS rescore
  26. 2026-06-01 13:49 UTCEPSS rescore
  27. 2026-06-01 13:49 UTCEPSS rescore
  28. 2026-05-31 07:46 UTCEG score recompute
  29. 2026-05-31 07:46 UTCGHSA enrichment
  30. 2026-05-31 00:13 UTCEPSS rescore
  31. 2026-05-31 00:13 UTCEPSS rescore
  32. 2026-05-31 00:13 UTCEPSS rescore
  33. 2026-05-29 13:40 UTCEPSS rescore
  34. 2026-05-28 13:42 UTCEPSS rescore
  35. 2026-05-28 13:42 UTCEPSS rescore
  36. 2026-05-27 13:37 UTCEPSS rescore
  37. 2026-05-27 13:37 UTCEPSS rescore
  38. 2026-05-26 13:41 UTCEPSS rescore
  39. 2026-05-26 13:41 UTCEPSS rescore
  40. 2026-05-26 07:16 UTCEPSS rescore
  41. 2026-05-26 07:16 UTCEPSS rescore
  42. 2026-05-24 16:42 UTCEPSS rescore
  43. 2026-05-22 21:15 UTCEPSS rescore
  44. 2026-05-22 21:15 UTCEPSS rescore
  45. 2026-05-20 22:36 UTCEPSS rescore
  46. 2026-05-20 22:36 UTCEPSS rescore
  47. 2026-05-20 11:20 UTCEPSS rescore
  48. 2026-05-20 11:20 UTCEPSS rescore
  49. 2026-05-18 21:29 UTCEPSS rescore

Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Exploit-DBEDB-2001✓ verified
    First seen Jul 10, 2006

    Microsoft Word 2000/2003 - Unchecked Boundary Condition

    Open source ↗

Frequently asked(4)

What is CVE-2006-3493?
CVE-2006-3493 is a medium vulnerability published on July 10, 2006. Buffer overflow in LsCreateLine function (mso_203) in mso.dll and mso9.dll, as used by Microsoft Word and possibly other products in Microsoft Office 2003, 2002, and 2000, allows remote user-assisted attackers to cause a denial of service (crash) via a crafted Word DOC or other Office file type.…
When was CVE-2006-3493 disclosed?
CVE-2006-3493 was first published in the National Vulnerability Database on July 10, 2006, with the most recent update on April 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2006-3493 actively exploited?
CVE-2006-3493 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 40% probability of exploitation in the next 30 days, which ranks it in the top 1.4% of all scored CVEs.
How do I remediate CVE-2006-3493?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2006-3493, 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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