CVE-2014-1770: Microsoft Internet Explorer

High severity, CVSS 9.3. EPSS: 34.7% chance of exploitation in the next 30 days.

Use-after-free vulnerability in Microsoft Internet Explorer 6 through 11 allows remote attackers to execute arbitrary code via crafted JavaScript code that interacts improperly with a CollectGarbage function call on a CMarkup object allocated by the CMarkup::CreateInitialMarkup function.

Affected products

• Microsoft Internet Explorer: version 6 only; version 7 only; version 8 only; version 9 only; version 10 only; version 11 only

Published 2014-05-22. Last modified 2026-06-17.