What’s Vulnerable › Vulnerabilities

CVE-2009-3672

• Severity: critical (CVSS 9.3 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 71.8% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2009-12-02 · updated 2026-06-16
• Weakness: CWE-94

Description

Microsoft Internet Explorer 6 and 7 does not properly handle objects in memory that (1) were not properly initialized or (2) are deleted, which allows remote attackers to execute arbitrary code via vectors involving a call to the getElementsByTagName method for the STYLE tag name, selection of the single element in the returned list, and a change to the outerHTML property of this element, related to Cascading Style Sheets (CSS) and mshtml.dll, aka "HTML Object Memory Corruption Vulnerability." NOTE: some of these details are obtained from third party information. NOTE: this issue was originally assigned CVE-2009-4054, but Microsoft assigned a duplicate identifier of CVE-2009-3672. CVE consumers should use this identifier instead of CVE-2009-4054.

Affected products

• Microsoft Internet Explorer 11: 6-sp1, 6, 7

References

• http://secunia.com/advisories/37448
• http://www.kb.cert.org/vuls/id/515749
• http://www.microsoft.com/technet/security/advisory/977981.mspx
• http://www.securityfocus.com/archive/1/507984/100/0/threaded
• http://www.securityfocus.com/bid/37085
• http://www.securitytracker.com/id?1023293
• http://www.symantec.com/connect/blogs/zero-day-internet-explorer-exploit-published
• http://www.us-cert.gov/cas/techalerts/TA09-342A.html
• http://www.vupen.com/english/advisories/2009/3301
• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-072
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6381
• http://secunia.com/advisories/37448

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