CVE-2010-3962
- EPSS 86.94%
- Published 05.11.2010 17:00:02
- Last modified 07.10.2025 01:00:02
- Source secure@microsoft.com
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Use-after-free vulnerability in Microsoft Internet Explorer 6, 7, and 8 allows remote attackers to execute arbitrary code via vectors related to Cascading Style Sheets (CSS) token sequences and the clip attribute, aka an "invalid flag reference" issue or "Uninitialized Memory Corruption Vulnerability," as exploited in the wild in November 2010.
Microsoft ≫ Windows Xp Version- Updatesp2 HwPlatformx64
Microsoft ≫ Windows Xp Version- Updatesp3
Microsoft ≫ Windows Server 2008 Version- Update-
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Microsoft ≫ Windows Vista Version- Updatesp1
Microsoft ≫ Windows Vista Version- Updatesp2
Microsoft ≫ Windows Xp Version- Updatesp2 SwEditionprofessional HwPlatformx64
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Microsoft ≫ Windows Server 2003 Version- Updatesp2
Microsoft ≫ Windows Server 2008 Version- Update-
Microsoft ≫ Windows Server 2008 Version- Updatesp2
Microsoft ≫ Windows Server 2008 Versionr2
Microsoft ≫ Windows Vista Version- Updatesp1
Microsoft ≫ Windows Vista Version- Updatesp2
Microsoft ≫ Windows Xp Version- Updatesp2 SwEditionprofessional HwPlatformx64
Microsoft ≫ Windows Xp Version- Updatesp3
06.10.2025: CISA Known Exploited Vulnerabilities (KEV) Catalog
Microsoft Internet Explorer Uninitialized Memory Corruption Vulnerability
VulnerabilityMicrosoft Internet Explorer contains an uninitialized memory corruption vulnerability that could allow for remote code execution. The impacted product could be end-of-life (EoL) and/or end-of-service (EoS). Users should discontinue product utilization.
DescriptionApply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Required actions| Type | Source | Score | Percentile |
|---|---|---|---|
| EPSS | FIRST.org | 86.94% | 0.994 |
| Source | Base Score | Exploit Score | Impact Score | Vector string |
|---|---|---|---|---|
| nvd@nist.gov | 9.3 | 8.6 | 10 |
AV:N/AC:M/Au:N/C:C/I:C/A:C
|
| 134c704f-9b21-4f2e-91b3-4a467353bcc0 | 8.1 | 2.2 | 5.9 |
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
|
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.