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.
CVE-2006-3493
- No confirmed exploitation signals yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- —
- EG Score
- 0.0(none)
- EPSS
- 98.5%
- KEV
- Not listed
Published
July 10, 2006
Last Modified
April 16, 2026
References (20)
- cve@mitrehttp://blogs.technet.com/msrc/archive/2006/07/10/441006.aspx
- cve@mitrehttp://lists.grok.org.uk/pipermail/full-disclosure/2006-July/047732.html
- cve@mitrehttp://marc.info/?l=full-disclosure&m=115231380526820&w=2
- cve@mitrehttp://marc.info/?l=full-disclosure&m=115261598510657&w=2
- cve@mitrehttp://securitytracker.com/id?1016453
- cve@mitrehttp://www.securityfocus.com/archive/1/439649/100/0/threaded
- cve@mitrehttp://www.securityfocus.com/archive/1/439878/100/0/threaded
- cve@mitrehttp://www.securityfocus.com/bid/18905
- cve@mitrehttp://www.vupen.com/english/advisories/2006/2720
- cve@mitrehttps://exchange.xforce.ibmcloud.com/vulnerabilities/27617
- af854a3a-2127-422b-91ae-364da2661108http://blogs.technet.com/msrc/archive/2006/07/10/441006.aspx
- af854a3a-2127-422b-91ae-364da2661108http://lists.grok.org.uk/pipermail/full-disclosure/2006-July/047732.html
- af854a3a-2127-422b-91ae-364da2661108http://marc.info/?l=full-disclosure&m=115231380526820&w=2
- af854a3a-2127-422b-91ae-364da2661108http://marc.info/?l=full-disclosure&m=115261598510657&w=2
- af854a3a-2127-422b-91ae-364da2661108http://securitytracker.com/id?1016453
Data Freshness Timeline
(refreshed 5× in last 7d / 20× 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.
- 2026-07-13 22:25 UTCEPSS rescore
- 2026-07-13 06:07 UTCEPSS rescore
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- 2026-06-06 13:44 UTCEPSS rescore
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- 2026-06-05 22:43 UTCEPSS rescore
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- 2026-06-01 13:49 UTCEPSS rescore
- 2026-06-01 13:49 UTCEPSS rescore
- 2026-06-01 13:49 UTCEPSS rescore
- 2026-05-31 07:46 UTCEG score recompute
- 2026-05-31 07:46 UTCGHSA enrichment
- 2026-05-31 00:13 UTCEPSS rescore
- 2026-05-31 00:13 UTCEPSS rescore
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- 2026-05-29 13:40 UTCEPSS rescore
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- 2026-05-27 13:37 UTCEPSS rescore
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- 2026-05-26 13:41 UTCEPSS rescore
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- 2026-05-26 07:16 UTCEPSS rescore
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- 2026-05-24 16:42 UTCEPSS rescore
- 2026-05-22 21:15 UTCEPSS rescore
- 2026-05-22 21:15 UTCEPSS rescore
- 2026-05-20 22:36 UTCEPSS rescore
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- 2026-05-20 11:20 UTCEPSS rescore
- 2026-05-20 11:20 UTCEPSS rescore
- 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✓ verifiedFirst seen Jul 10, 2006
Microsoft Word 2000/2003 - Unchecked Boundary Condition
Open source ↗
Frequently asked(4)
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