Risk Letters

Exploited vulnerability

CVE-2013-3893

TLP:CLEAR

Microsoft Internet Explorer Resource Management Errors Vulnerability

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.

Facts

  • Vendor: Microsoft
  • Product: Internet Explorer
  • CVSS: 8.8
  • EPSS (probability of exploitation within 30 days): 87.6 %
  • On CISA's Known Exploited Vulnerabilities list since: 12 August 2025
  • First known exploitation: 12 August 2025
  • CISA's deadline for US federal agencies: 2 September 2025
  • Weakness: CWE-399
  • First seen by Risk Letters: 12 August 2025

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Data: NVD (public domain), CISA KEV, FIRST EPSS, MITRE ATT&CK, AlienVault OTX. NVD