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    CVE-2006-3431

    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.

    Published:Jul 7, 2006
    Last Modified:Apr 16, 2026
    EPS:Jul 7, 2006
    EPSS Score:0.72969
    CVSS Score:7.5

    Affected Products

    Vendor
    Microsoft
    Product
    Excel

    Exploits

    http://www.securityfocus.com/bid/18872http://www.securityfocus.com/bid/18872https://www.exploit-db.com/exploits/28189

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2026-85875 (CVSS 5.5) — Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.…
    CVE-2026-81948 (CVSS 7.8) — Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.…
    CVE-2026-81950 (CVSS 7.8) — Double free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.…
    CVE-2026-81949 (CVSS 7.8) — Integer overflow or wraparound in Microsoft Office Excel allows an unauthorized attacker to execute code local…
    CVE-2026-81953 (CVSS 7.8) — Stack-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.…
    CVE-2026-81959 (CVSS 7.8) — Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.…
    CVE-2026-81951 (CVSS 7.8) — Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.…
    CVE-2026-81388 (CVSS 7.8) — Stack-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.…
    CVE-2026-81957 (CVSS 7.8) — Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code locally.…
    CVE-2026-81395 (CVSS 5.5) — Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.…

    References

    http://marc.info/?l=bugtraq&m=115274676314243&w=2
    http://secunia.com/advisories/20268
    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
    http://www.securityfocus.com/bid/18872
    http://www.vupen.com/english/advisories/2006/2689
    https://docs.microsoft.com/en-us/security-updates/securitybulletins/2006/ms06-059
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A431
    http://marc.info/?l=bugtraq&m=115274676314243&w=2
    http://secunia.com/advisories/20268
    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
    http://www.securityfocus.com/bid/18872
    http://www.vupen.com/english/advisories/2006/2689
    https://docs.microsoft.com/en-us/security-updates/securitybulletins/2006/ms06-059
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A431

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High