What’s Vulnerable › Vulnerabilities

CVE-2012-2557

• Severity: critical (CVSS 9.3 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 19.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2012-09-21 · updated 2026-06-16
• Weakness: CWE-399

Description

Use-after-free vulnerability in Microsoft Internet Explorer 6 through 8 allows remote attackers to execute arbitrary code via a crafted web site that triggers access to a deleted object, aka "cloneNode Use After Free Vulnerability."

Affected products

• Microsoft Internet Explorer 11: 6, 6-beta1, 6-sp1, 6-sp2, 6-sp3, 7 (+9)

References

• http://www.securityfocus.com/bid/55647
• http://www.securitytracker.com/id?1027555
• http://www.us-cert.gov/cas/techalerts/TA12-255A.html
• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-063
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15745
• http://www.securityfocus.com/bid/55647
• http://www.securitytracker.com/id?1027555
• http://www.us-cert.gov/cas/techalerts/TA12-255A.html
• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-063
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15745

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