Connect your agent
AdvisoriesCriticalCheck your lockfilePluginHow it worksPricing Connect your agent

CVE record · CVE-2020-1350

Improper input validation in Microsoft Windows Server and others

CVSS 10.0 CriticalCriticalIn CISA KEVEPSS 0.97 · 99th percentile

Critical, because:

  • In CISA’s KEV catalogue since 3 Nov 2021: it is known to be exploited.
  • CVSS score 10.0: 9.0 or more.
  • CVSS score 10.0 (7.0 or more) and EPSS 0.97 (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 14 Jul 2020, 22:54 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 Windows Server
  • affected 2019
  • affected 2019 (Core installation)
  • affected 2016
  • affected 2016 (Core installation)
  • affected 2008 for 32-bit Systems Service Pack 2
  • affected 2008 for 32-bit Systems Service Pack 2 (Core installation)
  • affected 2008 for x64-based Systems Service Pack 2
  • affected 2008 for x64-based Systems Service Pack 2 (Core installation)
  • affected 2008 R2 for x64-based Systems Service Pack 1
  • affected 2008 R2 for x64-based Systems Service Pack 1 (Core installation)
  • affected 2012
  • affected 2012 (Core installation)
  • and 2 more
Microsoft Windows Server, version 1909 (Server Core installation)
  • affected unspecified
Microsoft Windows Server, version 1903 (Server Core installation)
  • affected unspecified
Microsoft Windows Server, version 2004 (Server Core installation)
  • affected unspecified
Identifiers
CVE-2020-1350
CNA
microsoft
Weakness (CWE)
CWE-20
Tags
Published
14 Jul 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
10.0 Critical 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H ADP (CISA-ADP)
  • CISA KEV Listed since 3 Nov 2021: known to be exploited.
  • EPSS 0.97, 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 14 Jul 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.