CVE-2013-1347: Microsoft Internet Explorer Remote Code Execution Vulnerability

High severity, CVSS 8.8. Actively exploited: in CISA KEV since 2022-03-03. EPSS: 77.7% chance of exploitation in the next 30 days.

Microsoft Internet Explorer 8 does not properly handle objects in memory, which allows remote attackers to execute arbitrary code by accessing an object that (1) was not properly allocated or (2) is deleted, as exploited in the wild in May 2013.

Affected products

• Microsoft Internet Explorer: version 8 only

Published 2013-05-05. Last modified 2026-06-16.