CVE Vulnerabilities

CVE-2013-3893

Use After Free

Published: Sep 18, 2013 | Modified: Apr 22, 2026
CVSS 3.x
N/A
Source:
NVD
CVSS 2.x
9.3 HIGH
AV:N/AC:M/Au:N/C:C/I:C/A:C
RedHat/V2
RedHat/V3
Ubuntu
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Use-after-free vulnerability in the SetMouseCapture implementation in mshtml.dll in Microsoft Internet Explorer 6 through 11 allows remote attackers to execute arbitrary code via crafted JavaScript strings, as demonstrated by use of an ms-help: URL that triggers loading of hxds.dll.

Weakness

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 Any operations using the original pointer are no longer valid because the memory “belongs” to the code that operates on the new pointer.

Affected Software

NameVendorStart VersionEnd Version
Internet_explorerMicrosoft6 (including)6 (including)
Internet_explorerMicrosoft7 (including)7 (including)
Internet_explorerMicrosoft8 (including)8 (including)
Internet_explorerMicrosoft9 (including)9 (including)
Internet_explorerMicrosoft10 (including)10 (including)
Internet_explorerMicrosoft11-developer-preview (including)11-developer-preview (including)
Internet_explorerMicrosoft11-release-preview (including)11-release-preview (including)

Potential Mitigations

References