CVE-2014-1766: Microsoft Internet Explorer

High severity, CVSS 9.3. EPSS: 33.2% chance of exploitation in the next 30 days.

Microsoft Internet Explorer 9 through 11 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, as demonstrated by Sebastian Apelt and Andreas Schmidt during a Pwn2Own competition at CanSecWest 2014. NOTE: the original disclosure referred to triggering a kernel bug with the Internet Explorer exploit payload, but this ID is not for a kernel vulnerability.

Affected products

• Microsoft Internet Explorer: version 9 only; version 10 only; version 11 only

Published 2014-04-27. Last modified 2026-06-17.