Home/CVE/Buffer overflow in certain Asian language versions of Microsoft Excel might allow user-assisted attackers to execute arb
CVE

CVE-2006-3431

Buffer overflow in certain Asian language versions of Microsoft Excel might allow user-assisted attackers to execute arb

Buffer overflow in certain Asian language versions of Microsoft Excel might allow user-assisted attackers to execute arbitrary code via a crafted STYLE record in a spreadsheet that triggers the overflow when the user attempts to repair the document or selects the "Style" option, as demonstrated by nanika.xls. NOTE: Microsoft has confirmed to CVE via e-mail that this is different than the other Excel vulnerabilities announced before 20060707, including CVE-2006-3059 and CVE-2006-3086.

HIGH · CVSS 7.5 EPSS 0.72969
Act now
  • EPSS ≥ 0.50 - high probability of exploitation in the next 30 days
  • EPSS percentile: top 1% of all CVEs by exploitation likelihood
  • Public exploit or PoC is available
  • CVSS base score ≥ 7.0
Sigma rules5 YARA rules0
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Affected Products & Versions

1
microsoft excelall versions
⚠

Public Exploits & PoCs

2
remoteMicrosoft Excel 2000-2004 - Style Handling and Repair Remote Code Executionverified
pocwww.securityfocus.com · 18872www.securityfocus.com
◈

Sigma Hunt Rules

5
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
producthighPython Function Execution Security Warning Disabled In Excel
producthighPotential Excel.EXE DCOM Lateral Movement Via ActivateMicrosoftApp
producthighPotential Persistence Via Excel Add-in - Registry
producthighPython Function Execution Security Warning Disabled In Excel - Registry
productmediumMicrosoft Excel Add-In Loaded From Uncommon Location
▣

Scoring & Timeline

7.5
HIGH · CVSS v2 (legacy) · cve@mitre.org
View on NVD
This CVE predates CVSS v3; the legacy v2 score is shown so triage still has a severity to work with.
v2 Vector
AV:N/AC:L/Au:N/C:P/I:P/A:P
Published to NVD07 Jul 2006 · 06:05 PM
🔗

References & Sources

9
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://marc.info/?l=bugtraq&m=115274676314243&w=2
http://secunia.com/advisories/20268Vendor Advisory
http://securitytracker.com/id?1016430
http://www.securityfocus.com/archive/1/438963/100/0/threaded
http://www.securityfocus.com/archive/1/439427/100/0/threaded
http://www.securityfocus.com/archive/1/449179/100/0/threaded
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