Original 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."
Known exploited (CISA KEV)
- Added to KEV
- 2026-05-20
- Remediation due (US federal)
- 2026-06-03
- Ransomware use
- Unknown
- Required action
- Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Details
- Published
- 2010-01-16
- Last modified
- 2026-05-21
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H- EPSS (30-day exploit probability)
- 91.94% (percentile 100)
References
- cve.org/CVE-2010-0249
- nvd.nist.gov/vuln/detail/CVE-2010-0249
- www.microsoft.com/technet/security/advisory/979352.mspx
- oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6835
- osvdb.org/61697
- www.securityfocus.com/bid/37815
- www.kb.cert.org/vuls/id/492515
- www.exploit-db.com/exploits/11167
- support.microsoft.com/kb/979352
- blogs.technet.com/msrc/archive/2010/01/14/security-advisory-979352.aspx
- exchange.xforce.ibmcloud.com/vulnerabilities/55642
- www.us-cert.gov/cas/techalerts/TA10-055A.html
- docs.microsoft.com/en-us/security-updates/securitybulletins/2010/ms10-002
- news.cnet.com/8301-27080_3-10435232-245.html
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