CVE-2010-0249 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 20...
HighCVSS 8.8
EPSS 91.9%
CISA KEV
added 2026-05-20 · due 2026-06-03
Exploited in the wild
Framework module
Public exploit
- Published
- Updated
- Exploit status
- Exploited in the wild (confirmed)
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."
CISA Known Exploited Vulnerability
- Date added
- 2026-05-20
- Due date (FCEB)
- 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.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Microsoft internet explorer | = 5.0.1-sp4 | No fix listed |
| Microsoft internet explorer | = 6-sp1 | No fix listed |
| Microsoft internet explorer | = 6 | No fix listed |
| Microsoft internet explorer | = 7.0 | No fix listed |
| Microsoft internet explorer | = 8 | No fix listed |
References
- blogs.technet.com broken-link vendor-advisory
- news.cnet.com broken-link
- 61697 broken-link vdb-entry
- 1023462 broken-link third-party-advisory vdb-entry
- 979352 patch vendor-advisory
- 11167 exploit third-party-advisory vdb-entry
- VU#492515 third-party-advisory us-government-resource
- www.microsoft.com broken-link patch vendor-advisory
- 37815 broken-link exploit third-party-advisory vdb-entry
- TA10-055A broken-link third-party-advisory us-government-resource
- ADV-2010-0135 broken-link vdb-entry
- MS10-002 patch vendor-advisory
- ie-freed-object-code-execution(55642) third-party-advisory vdb-entry
- oval:org.mitre.oval:def:6835 broken-link signature vdb-entry
- www.cisa.gov government-resource us-government-resource