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CVE record · CVE-2019-1458

Microsoft Windows: An elevation of privilege vulnerability exists in Windows when the Win32k component fails…

CVSS 7.8 HighCriticalIn CISA KEV · ransomwareEPSS 0.74 · 99th percentile

Critical, because:

  • In CISA’s KEV catalogue since 10 Jan 2022: it is known to be exploited.
  • CVSS score 7.8 (7.0 or more) and EPSS 0.74 (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 10 Dec 2019, 21:40 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
  • affected 10 for 32-bit Systems
  • affected 10 for x64-based Systems
  • affected 10 Version 1607 for 32-bit Systems
  • affected 10 Version 1607 for x64-based Systems
  • affected 7 for 32-bit Systems Service Pack 1
  • affected 7 for x64-based Systems Service Pack 1
  • affected 8.1 for 32-bit systems
  • affected 8.1 for x64-based systems
  • affected RT 8.1
Microsoft Windows Server
  • 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 Itanium-Based Systems Service Pack 2
  • affected 2008 for x64-based Systems Service Pack 2
  • affected 2008 for x64-based Systems Service Pack 2 (Core installation)
  • affected 2008 R2 for Itanium-Based Systems Service Pack 1
  • 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
Identifiers
CVE-2019-1458
CNA
microsoft
Tags
Published
10 Dec 2019
Updated
12 Aug 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
7.8 High 3.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H ADP (CISA-ADP)
  • CISA KEV Listed since 10 Jan 2022: known to be exploited. CISA reports use in ransomware campaigns.
  • EPSS 0.74, the 99th percentile, on 8 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 10 Dec 2019. 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.