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CRITICAL: THIS VULNERABILITY IS ACTIVELY BEING EXPLOITED IN THE WILD (CISA KEV CATALOG)
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CVE-2010-3962

Exploited

Microsoft Internet Explorer - Rendering Engine

Microsoft CVSS 8.1 Updated April 30, 2026

Executive Risk Summary

"A use-after-free vulnerability in Microsoft Internet Explorer 6, 7, and 8 allows remote attackers to execute arbitrary code via vectors related to Cascading Style Sheets (CSS) token sequences and the clip attribute. This vulnerability can be exploited by an attacker to gain control of a user's system, potentially leading to data theft, malware installation, or other malicious activities."

Anticipated Attack Path

  1. 1. Initial Exploitation: Attacker crafts malicious CSS token sequence
  2. 2. Privilege Escalation: Exploited code gains control of user's system
  3. 3. Lateral Movement: Attacker installs malware or steals sensitive data

Am I Vulnerable?

  • Verify Internet Explorer version and apply patch MS10-090
  • Restrict access to malicious websites and disable JavaScript
  • Monitor system logs for suspicious activity

Operational Audit Arsenal

Target Type Process
Target Asset iexplore.exe
Standard Path C:\Program Files\Internet Explorer
PowerShell
# 🛠️ Senior Engineer Universal Audit
# Target: iexplore.exe (Process)
$Targets = 'iexplore.exe'
$SearchPaths = @("$env:windir\System32", "$env:ProgramFiles", "${env:ProgramFiles(x86)}")

Get-ChildItem -Path $SearchPaths -Include $Targets -Recurse -ErrorAction SilentlyContinue | 
Select-Object FullName, @{Name="Version";Expression={$_.VersionInfo.ProductVersion}}

Patch Impact Forecast

Reboot Required Likely

Minimal, but may require restarting Internet Explorer

Internal Work Notes

Apply patch MS10-090 to vulnerable Internet Explorer versions to prevent remote code execution attacks.

Technical Intelligence & Operational Utilities • Delivered Weekly

Intelligence Sources

Official Advisoryhttp://blogs.technet.com/b/msrc/archive/2010/11/02/microsoft-releases-security-advisory-2458511.aspx
Official Advisoryhttp://secunia.com/advisories/42091
Official Advisoryhttp://www.exploit-db.com/exploits/15418
Official Advisoryhttp://www.exploit-db.com/exploits/15421
Official Advisoryhttp://www.kb.cert.org/vuls/id/899748
MSRC Advisoryhttp://www.microsoft.com/technet/security/advisory/2458511.mspx
Official Advisoryhttp://www.securityfocus.com/bid/44536
Official Advisoryhttp://www.securitytracker.com/id?1024676
Official Advisoryhttp://www.symantec.com/connect/blogs/new-ie-0-day-used-targeted-attacks
Official Advisoryhttp://www.us-cert.gov/cas/techalerts/TA10-348A.html
Official Advisoryhttp://www.vupen.com/english/advisories/2010/2880
MSRC Advisoryhttps://docs.microsoft.com/en-us/security-updates/securitybulletins/2010/ms10-090
Official Advisoryhttps://exchange.xforce.ibmcloud.com/vulnerabilities/62962
Official Advisoryhttps://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12279
Official Advisoryhttp://blogs.technet.com/b/msrc/archive/2010/11/02/microsoft-releases-security-advisory-2458511.aspx
Official Advisoryhttp://secunia.com/advisories/42091
Official Advisoryhttp://www.exploit-db.com/exploits/15418
Official Advisoryhttp://www.exploit-db.com/exploits/15421
Official Advisoryhttp://www.kb.cert.org/vuls/id/899748
MSRC Advisoryhttp://www.microsoft.com/technet/security/advisory/2458511.mspx
Official Advisoryhttp://www.securityfocus.com/bid/44536
Official Advisoryhttp://www.securitytracker.com/id?1024676
Official Advisoryhttp://www.symantec.com/connect/blogs/new-ie-0-day-used-targeted-attacks
Official Advisoryhttp://www.us-cert.gov/cas/techalerts/TA10-348A.html
Official Advisoryhttp://www.vupen.com/english/advisories/2010/2880
MSRC Advisoryhttps://docs.microsoft.com/en-us/security-updates/securitybulletins/2010/ms10-090
Official Advisoryhttps://exchange.xforce.ibmcloud.com/vulnerabilities/62962
Official Advisoryhttps://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12279
Official Advisoryhttps://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2010-3962

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Data compiled from NVD, MSRC, and CISA KEV Catalog. Intelligence synthesized via AI. Scripts provided for diagnostic purposes under MIT License.