[ CVE-2013-3893 · Published 18 Sep 2013 ]

Microsoft Internet Explorer Resource Management Errors Vulnerability

Exploited · CISA KEV CVSS 8.8 EPSS 88%No fix listed yet

[ Why it matters ]Priority signals

  • Exploited in the wild: on CISA's Known Exploited Vulnerabilities list since 2025-08-12
  • EPSS: 88% chance of exploitation in the next 30 days (higher than 100% of CVEs)

[ Description ]Official description

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.

CISA: Microsoft Internet Explorer contains a memory corruption vulnerability that allows for remote code execution. The impacted products could be end-of-life (EoL) and/or end-of-service (EoS). Users should discontinue product utilization.

[ Fixes ]Fixes and patches

CISA required action (US federal deadline 2 Sep 2025): Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.