What’s Vulnerable › Vulnerabilities

CVE-2010-0249: Microsoft Internet Explorer Use-After-Free Vulnerability

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: yes — in CISA KEV since 2026-05-20
• EPSS: 91.9% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2010-01-15 · updated 2026-06-16
• Weakness: CWE-416

Description

Use-after-free vulnerability in Microsoft Internet Explorer 6, 6 SP1, 7, and 8 on Windows 2000 SP4; Windows XP SP2 and SP3; Windows Server 2003 SP2; Windows Vista Gold, SP1, and SP2; Windows Server 2008 Gold, SP2, and R2; and Windows 7 allows remote attackers to execute arbitrary code by accessing a pointer associated with a deleted object, related to incorrectly initialized memory and improper handling of objects in memory, as exploited in the wild in December 2009 and January 2010 during Operation Aurora, aka "HTML Object Memory Corruption Vulnerability."

Affected products

• Microsoft Internet Explorer 11: 5.0.1-sp4, 6-sp1, 6, 7.0, 8

References

• http://blogs.technet.com/msrc/archive/2010/01/14/security-advisory-979352.aspx
• http://news.cnet.com/8301-27080_3-10435232-245.html
• http://osvdb.org/61697
• http://securitytracker.com/id?1023462
• http://support.microsoft.com/kb/979352
• http://www.exploit-db.com/exploits/11167
• http://www.kb.cert.org/vuls/id/492515
• http://www.microsoft.com/technet/security/advisory/979352.mspx
• http://www.securityfocus.com/bid/37815
• http://www.us-cert.gov/cas/techalerts/TA10-055A.html
• http://www.vupen.com/english/advisories/2010/0135
• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2010/ms10-002

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