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…
- Published
- Updated
- Reserved
- Assigned by
- microsoft
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."
Exploited in the wild
CISA lists this vulnerability in its Known Exploited Vulnerabilities catalog as Microsoft Internet Explorer Use-After-Free Vulnerability.
- Added
- 20 May 2026
- Fix due (US federal)
- 3 Jun 2026
- Used by ransomware
- Not known
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| CISA-ADPADP (enrichment) | 3.1 | High8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| NVDNVD · Analyzed | 3.1 | High8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 91.9% · top 0.2% of all CVEs (4 Nov 2026)
- CISA SSVC
- Exploitation: active · Automatable: no · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.8.
Weakness
Affected products
n/a
- affected n/a
References (15)
- http://www.microsoft.com/technet/security/advisory/979352.mspx (opens in a new tab)x_refsource_CONFIRMx_transferred
- oval:org.mitre.oval:def:6835 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- 61697 (opens in a new tab)vdb-entryx_refsource_OSVDBx_transferred
- 37815 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- VU#492515 (opens in a new tab)third-party-advisoryx_refsource_CERT-VNx_transferred
- 11167 (opens in a new tab)exploitx_refsource_EXPLOIT-DBx_transferred
- 979352 (opens in a new tab)vendor-advisoryx_refsource_MSKBx_transferred
- http://blogs.technet.com/msrc/archive/2010/01/14/security-advisory-979352.aspx (opens in a new tab)x_refsource_CONFIRMx_transferred
- ie-freed-object-code-execution(55642) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- TA10-055A (opens in a new tab)third-party-advisoryx_refsource_CERTx_transferred
- MS10-002 (opens in a new tab)vendor-advisoryx_refsource_MSx_transferred
- http://news.cnet.com/8301-27080_3-10435232-245.html (opens in a new tab)x_refsource_MISCx_transferred
- 1023462 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- ADV-2010-0135 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2010-0249 (opens in a new tab)government-resource
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- CISA KEV catalog (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2010-0249)Record last updated .