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CVE record · CVE-2020-0796

Buffer overflow in Microsoft Windows 10 Version 1903 for 32-bit Systems and others

CVSS 10.0 CriticalCriticalIn CISA KEV · ransomwareEPSS 1.00 · 99th percentile

Critical, because:

  • In CISA’s KEV catalogue since 10 Feb 2022: it is known to be exploited.
  • CVSS score 10.0: 9.0 or more.
  • CVSS score 10.0 (7.0 or more) and EPSS 1.00 (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 12 Mar 2020, 15:48 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 10 Version 1903 for 32-bit Systems
  • affected unspecified
Microsoft Windows 10 Version 1903 for x64-based Systems
  • affected unspecified
Microsoft Windows 10 Version 1903 for ARM64-based Systems
  • affected unspecified
Microsoft Windows Server, version 1903 (Server Core installation)
  • affected unspecified
Microsoft Windows 10 Version 1909 for 32-bit Systems
  • affected unspecified
Microsoft Windows 10 Version 1909 for x64-based Systems
  • affected unspecified
Microsoft Windows 10 Version 1909 for ARM64-based Systems
  • affected unspecified
Microsoft Windows Server, version 1909 (Server Core installation)
  • affected unspecified
Identifiers
CVE-2020-0796
CNA
microsoft
Weakness (CWE)
CWE-119
Tags
Published
12 Mar 2020
Updated
1 Oct 2026

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 10 Feb 2022: known to be exploited. CISA reports use in ransomware campaigns.
  • EPSS 1.00, the 99th percentile, on 6 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 12 Mar 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.