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CVE record · CVE-2020-0674

Use after free in Microsoft Internet Explorer 10 and others

CVSS 7.5 HighCriticalIn CISA KEVEPSS 0.87 · 99th percentile

Critical, because:

  • In CISA’s KEV catalogue since 3 Nov 2021: it is known to be exploited.
  • CVSS score 7.5 (7.0 or more) and EPSS 0.87 (0.1 or more): a high score and a real chance of exploitation in the next 30 days.

How we decide what’s critical

Published by the CVE Program (CNA: microsoft) at 11 Feb 2020, 21:22 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
VendorProductVersions
Microsoft Internet Explorer 10
  • affected Windows Server 2012
Microsoft Internet Explorer 11
  • affected Windows 10 Version 1803 for 32-bit Systems
  • affected Windows 10 Version 1803 for x64-based Systems
  • affected Windows 10 Version 1803 for ARM64-based Systems
  • affected Windows 10 Version 1809 for 32-bit Systems
  • affected Windows 10 Version 1809 for x64-based Systems
  • affected Windows 10 Version 1809 for ARM64-based Systems
  • affected Windows Server 2019
  • affected Windows 10 Version 1709 for 32-bit Systems
  • affected Windows 10 Version 1709 for x64-based Systems
  • affected Windows 10 Version 1709 for ARM64-based Systems
  • affected Windows 10 for 32-bit Systems
  • affected Windows 10 for x64-based Systems
  • and 10 more
Microsoft Internet Explorer 11 on Windows 10 Version 1909 for 32-bit Systems
  • affected unspecified
Microsoft Internet Explorer 11 on Windows 10 Version 1909 for x64-based Systems
  • affected unspecified
Microsoft Internet Explorer 11 on Windows 10 Version 1909 for ARM64-based Systems
  • affected unspecified
Microsoft Internet Explorer 11 on Windows 10 Version 1903 for 32-bit Systems
  • affected unspecified
Microsoft Internet Explorer 11 on Windows 10 Version 1903 for x64-based Systems
  • affected unspecified
Microsoft Internet Explorer 11 on Windows 10 Version 1903 for ARM64-based Systems
  • affected unspecified
Microsoft Internet Explorer 11 on Windows Server 2012
  • affected unspecified
Microsoft Internet Explorer 9
  • affected Windows Server 2008 for x64-based Systems Service Pack 2
  • affected Windows Server 2008 for 32-bit Systems Service Pack 2
Identifiers
CVE-2020-0674
CNA
microsoft
Weakness (CWE)
CWE-416
Tags
Published
11 Feb 2020
Updated
21 Oct 2025

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

ScoreRatingCVSSVectorSource
7.5 High 3.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H ADP (CISA-ADP)
  • CISA KEV Listed since 3 Nov 2021: known to be exploited.
  • EPSS 0.87, the 99th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 11 Feb 2020. New records show when each source confirmed them.

Sources

References from the CNA

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.