CVE-2020-1380: Microsoft Internet Explorer Scripting Engine Memory Corruption Vulnerability

CVE-2020-1380 · Severity: critical · CVSS 8.8 · Exploited in the wild · Published 2021-11-03

A remote code execution vulnerability exists in the Microsoft Internet Explorer scripting engine due to improper handling of objects in memory. An attacker can exploit this by hosting a specially crafted website or embedding a malicious ActiveX control in an Office document, potentially gaining full user rights or administrative control.

Technologies: Microsoft Internet Explorer. Vendors: Microsoft.

Quick answers

Is CVE-2020-1380 exploited in the wild?
Yes. CVE-2020-1380 is known to be exploited in the wild, first recorded on 3 November 2021. Treat it as urgent.
How severe is CVE-2020-1380?
Critical severity, with a CVSS score of 8.8, published 3 November 2021.
Which products and versions are affected?
Microsoft Internet Explorer.
Is there a fix for CVE-2020-1380?
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-2020-1380 attacked?
It is attacked over the network, in a network appliance.
Am I affected by CVE-2020-1380?
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

Timeline

  • 2021-11-03: kev added: Added to CISA Known Exploited Vulnerabilities Catalog
  • 2021-11-03: disclosed

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