What’s Vulnerable › Vulnerabilities

CVE-2013-0020

• Severity: critical (CVSS 9.3 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 28.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2013-02-13 · updated 2026-06-16
• Weakness: CWE-399

Description

Use-after-free vulnerability in Microsoft Internet Explorer 9 allows remote attackers to execute arbitrary code via a crafted web site that triggers access to a deleted object, aka "Internet Explorer CMarkup Use After Free Vulnerability."

Affected products

• Microsoft Internet Explorer 11: 9

References

• http://www.us-cert.gov/cas/techalerts/TA13-043B.html
• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-009
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15875
• http://www.us-cert.gov/cas/techalerts/TA13-043B.html
• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-009
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15875

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