CVE-2019-1429: Microsoft Internet Explorer Scripting Engine Memory Corruption Vulnerability

High severity, CVSS 7.5. Actively exploited: in CISA KEV since 2021-11-03. EPSS: 77.3% chance of exploitation in the next 30 days.

A remote code execution vulnerability exists in the way that the scripting engine handles objects in memory in Internet Explorer, aka 'Scripting Engine Memory Corruption Vulnerability'. This CVE ID is unique from CVE-2019-1426, CVE-2019-1427, CVE-2019-1428.

Affected products

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

Published 2019-11-12. Last modified 2026-06-17.