What’s Vulnerable › Vulnerabilities

CVE-2013-2551: Microsoft Internet Explorer Use-After-Free Vulnerability

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: yes — in CISA KEV since 2022-03-28
• EPSS: 73.9% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2013-03-11 · updated 2026-06-16
• Weakness: CWE-416

Description

Use-after-free vulnerability in Microsoft Internet Explorer 6 through 10 allows remote attackers to execute arbitrary code via a crafted web site that triggers access to a deleted object, as demonstrated by VUPEN during a Pwn2Own competition at CanSecWest 2013, aka "Internet Explorer Use After Free Vulnerability," a different vulnerability than CVE-2013-1308 and CVE-2013-1309.

Affected products

• Microsoft Internet Explorer 11: 6, 7, 8, 9, 10

References

• http://h30499.www3.hp.com/t5/HP-Security-Research-Blog/Pwn2Own-2013/ba-p/5981157
• http://twitter.com/VUPEN/statuses/309479075385327617
• http://twitter.com/thezdi/statuses/309452625173176320
• http://www.us-cert.gov/ncas/alerts/TA13-134A
• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-037
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16317
• http://h30499.www3.hp.com/t5/HP-Security-Research-Blog/Pwn2Own-2013/ba-p/5981157
• http://twitter.com/VUPEN/statuses/309479075385327617
• http://twitter.com/thezdi/statuses/309452625173176320
• http://www.us-cert.gov/ncas/alerts/TA13-134A
• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-037
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16317

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