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    CVE-2006-3451

    Microsoft Internet Explorer 5 SP4 and 6 do not properly garbage collect when "multiple imports are used on a styleSheets collection" to construct a chain of Cascading Style Sheets (CSS), which allows remote attackers to execute arbitrary code via unspecified vectors.

    Published:Aug 8, 2006
    Last Modified:Apr 16, 2026
    EPS:Aug 8, 2006
    EPSS Score:0.64171
    CVSS Score:7.5

    Affected Products

    Vendor
    Microsoft
    Product
    Ie

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-20 Improper Input Validation

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-10 Buffer Overflow via Environment Variables
    CAPEC-101 Server Side Include (SSI) Injection
    CAPEC-104 Cross Zone Scripting
    CAPEC-108 Command Line Execution through SQL Injection
    CAPEC-109 Object Relational Mapping Injection
    CAPEC-110 SQL Injection through SOAP Parameter Tampering
    CAPEC-120 Double Encoding
    CAPEC-13 Subverting Environment Variable Values
    CAPEC-135 Format String Injection
    CAPEC-136 LDAP Injection
    CAPEC-14 Client-side Injection-induced Buffer Overflow
    CAPEC-153 Input Data Manipulation
    CAPEC-182 Flash Injection
    CAPEC-209 XSS Using MIME Type Mismatch
    CAPEC-22 Exploiting Trust in Client
    CAPEC-23 File Content Injection
    CAPEC-230 Serialized Data with Nested Payloads
    CAPEC-231 Oversized Serialized Data Payloads
    CAPEC-24 Filter Failure through Buffer Overflow
    CAPEC-250 XML Injection
    CAPEC-261 Fuzzing for garnering other adjacent user/sensitive data
    CAPEC-267 Leverage Alternate Encoding
    CAPEC-28 Fuzzing
    CAPEC-3 Using Leading 'Ghost' Character Sequences to Bypass Input Filters
    CAPEC-31 Accessing/Intercepting/Modifying HTTP Cookies
    CAPEC-42 MIME Conversion
    CAPEC-43 Exploiting Multiple Input Interpretation Layers
    CAPEC-45 Buffer Overflow via Symbolic Links
    CAPEC-46 Overflow Variables and Tags
    CAPEC-47 Buffer Overflow via Parameter Expansion
    CAPEC-473 Signature Spoof
    CAPEC-52 Embedding NULL Bytes
    CAPEC-53 Postfix, Null Terminate, and Backslash
    CAPEC-588 DOM-Based XSS
    CAPEC-63 Cross-Site Scripting (XSS)
    CAPEC-64 Using Slashes and URL Encoding Combined to Bypass Validation Logic
    CAPEC-664 Server Side Request Forgery
    CAPEC-67 String Format Overflow in syslog()
    CAPEC-7 Blind SQL Injection
    CAPEC-71 Using Unicode Encoding to Bypass Validation Logic
    CAPEC-72 URL Encoding
    CAPEC-73 User-Controlled Filename
    CAPEC-78 Using Escaped Slashes in Alternate Encoding
    CAPEC-79 Using Slashes in Alternate Encoding
    CAPEC-8 Buffer Overflow in an API Call
    CAPEC-80 Using UTF-8 Encoding to Bypass Validation Logic
    CAPEC-81 Web Server Logs Tampering
    CAPEC-83 XPath Injection
    CAPEC-85 AJAX Footprinting
    CAPEC-88 OS Command Injection
    CAPEC-9 Buffer Overflow in Local Command-Line Utilities

    Related CVEs

    CVE-2012-4792 (CVSS 8.8) — Use-after-free vulnerability in Microsoft Internet Explorer 6 through 8 allows remote attackers to execute arb…
    CVE-2012-1539 (CVSS 8.1) — Use-after-free vulnerability in Microsoft Internet Explorer 9 allows remote attackers to execute arbitrary cod…
    CVE-2012-1545 (CVSS 5.8) — Microsoft Internet Explorer 6 through 9, and 10 Consumer Preview, allows remote attackers to bypass Protected …
    CVE-2002-2435 (CVSS 4.3) — The Cascading Style Sheets (CSS) implementation in Microsoft Internet Explorer 8.0 and earlier does not proper…
    CVE-2010-5071 (CVSS 5) — The JavaScript implementation in Microsoft Internet Explorer 8.0 and earlier does not properly restrict the se…
    CVE-2011-2382 (CVSS 4.3) — Microsoft Internet Explorer 8 and earlier, and Internet Explorer 9 beta, does not properly restrict cross-zone…
    CVE-2011-2383 (CVSS 4.3) — Microsoft Internet Explorer 9 and earlier does not properly restrict cross-zone drag-and-drop actions, which a…
    CVE-2010-1260 (CVSS 7.5) — The IE8 Developer Toolbar in Microsoft Internet Explorer 8 SP1, SP2, and SP3 allows user-assisted remote attac…
    CVE-2010-2118 (CVSS 4.3) — Microsoft Internet Explorer 6.0.2900.2180 and 8.0.7600.16385 allows remote attackers to cause a denial of serv…
    CVE-2010-1991 (CVSS 5) — Microsoft Internet Explorer 6.0.2900.2180, 7, and 8.0.7600.16385 executes a mail application in situations whe…

    References

    http://secunia.com/advisories/21396
    http://securityreason.com/securityalert/1343
    http://securitytracker.com/id?1016663
    http://www.kb.cert.org/vuls/id/262004
    http://www.osvdb.org/27854
    http://www.securityfocus.com/archive/1/442578/100/0/threaded
    http://www.securityfocus.com/bid/19316
    http://www.us-cert.gov/cas/techalerts/TA06-220A.html
    http://www.vupen.com/english/advisories/2006/3212
    http://www.zerodayinitiative.com/advisories/ZDI-06-026.html
    https://docs.microsoft.com/en-us/security-updates/securitybulletins/2006/ms06-042
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5
    http://secunia.com/advisories/21396
    http://securityreason.com/securityalert/1343
    http://securitytracker.com/id?1016663
    http://www.kb.cert.org/vuls/id/262004
    http://www.osvdb.org/27854
    http://www.securityfocus.com/archive/1/442578/100/0/threaded
    http://www.securityfocus.com/bid/19316
    http://www.us-cert.gov/cas/techalerts/TA06-220A.html
    http://www.vupen.com/english/advisories/2006/3212
    http://www.zerodayinitiative.com/advisories/ZDI-06-026.html
    https://docs.microsoft.com/en-us/security-updates/securitybulletins/2006/ms06-042
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5

    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