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CVE record · CVE-2019-0841

Symlink following in Microsoft Windows and others

CVSS 7.8 HighCriticalIn CISA KEV · ransomwareEPSS 0.41 · 98th percentile

Critical, because:

  • In CISA’s KEV catalogue since 15 Mar 2022: it is known to be exploited.
  • CVSS score 7.8 (7.0 or more) and EPSS 0.41 (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 9 Apr 2019, 20:18 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 Version 1703 for 32-bit Systems
  • affected 10 Version 1703 for x64-based Systems
  • affected 10 Version 1709 for 32-bit Systems
  • affected 10 Version 1709 for x64-based Systems
  • affected 10 Version 1803 for 32-bit Systems
  • affected 10 Version 1803 for x64-based Systems
  • affected 10 Version 1803 for ARM64-based Systems
  • affected 10 Version 1809 for 32-bit Systems
  • affected 10 Version 1809 for x64-based Systems
  • affected 10 Version 1809 for ARM64-based Systems
  • affected 10 Version 1709 for ARM64-based Systems
Microsoft Windows Server
  • affected version 1709 (Core Installation)
  • affected version 1803 (Core Installation)
  • affected 2019
  • affected 2019 (Core installation)
Identifiers
CVE-2019-0841
CNA
microsoft
Weakness (CWE)
CWE-59
Tags
Published
9 Apr 2019
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
7.8 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 15 Mar 2022: known to be exploited. CISA reports use in ransomware campaigns.
  • EPSS 0.41, the 98th 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 9 Apr 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.