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

CVE-2019-1429 · Severity: critical · CVSS 7.5 · Exploited in the wild · Published 2021-11-03

A remote code execution vulnerability exists in Microsoft Internet Explorer's scripting engine due to improper handling of objects in memory. An attacker could exploit this memory corruption to execute arbitrary code in the context of the current user, typically by enticing a user to visit a specially crafted website.

Technologies: Microsoft Internet Explorer. Vendors: Microsoft.

Quick answers

Is CVE-2019-1429 exploited in the wild?
Yes. CVE-2019-1429 is known to be exploited in the wild, first recorded on 3 November 2021. Treat it as urgent.
How severe is CVE-2019-1429?
Critical severity, with a CVSS score of 7.5, published 3 November 2021.
Which products and versions are affected?
Microsoft Internet Explorer 10, 11.
Is there a fix for CVE-2019-1429?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2019-1429 attacked?
It is attacked over the network, in a web application.
Am I affected by CVE-2019-1429?
Check whether you run Microsoft Internet Explorer. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Affected products

  • Microsoft Internet Explorer 10, 11

Timeline

  • 2019-11-12: disclosed: MSRC advisory published
  • 2021-11-03: kev added: Added to CISA Known Exploited Vulnerabilities Catalog
  • 2021-11-03: exploited: Reported as exploited in the wild per CISA KEV and advisory metadata.

This page as Markdown. Free to reuse under CC BY 4.0 with a link back.