CVE-2019-1367: Microsoft Internet Explorer Scripting Engine Memory Corruption Vulnerability

CVE-2019-1367 · Severity: critical · CVSS 7.5 · Exploited in the wild · Published 2021-11-03

A memory corruption vulnerability exists in the Microsoft Internet Explorer scripting engine due to improper handling of objects in memory. Successful exploitation could allow a remote attacker to execute arbitrary code in the context of the current user, typically via a specially crafted website.

Technologies: Microsoft Internet Explorer. Vendors: Microsoft.

Quick answers

Is CVE-2019-1367 exploited in the wild?
Yes. CVE-2019-1367 is known to be exploited in the wild, first recorded on 3 November 2021. Treat it as urgent.
How severe is CVE-2019-1367?
Critical severity, with a CVSS score of 7.5, published 3 November 2021.
Which products and versions are affected?
Microsoft Internet Explorer 9, 10, 11.
Is there a fix for CVE-2019-1367?
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-2019-1367 attacked?
It is attacked over the network, in a network appliance.
Am I affected by CVE-2019-1367?
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 9, 10, 11

Timeline

  • 2019-09-24: disclosed: Initial analysis by NIST
  • 2021-11-03: kev added: Added to CISA Known Exploited Vulnerabilities Catalog
  • 2021-11-03: other: Publication date listed in advisory

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