Description

Improper input validation in Windows Server Update Service allows an unauthorized attacker to perform tampering over a network.

INFO

Published Date :

2026-04-14T16:56:58.935Z

Last Modified :

2026-04-15T17:15:10.182Z

Source :

microsoft
AFFECTED PRODUCTS

The following products are affected by CVE-2026-26154 vulnerability.

Vendors Products
Microsoft
  • Windows Server 2012
  • Windows Server 2012 (server Core Installation)
  • Windows Server 2012 R2
  • Windows Server 2012 R2
  • Windows Server 2012 R2 (server Core Installation)
  • Windows Server 2016
  • Windows Server 2016 (server Core Installation)
  • Windows Server 2019
  • Windows Server 2019 (server Core Installation)
  • Windows Server 2022
  • Windows Server 2022, 23h2 Edition (server Core Installation)
  • Windows Server 2025
  • Windows Server 2025 (server Core Installation)
  • Windows Server 23h2
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-26154.

URL Resource
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26154 cve-icon cve-icon
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CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
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Privileges Required
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Scope
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Integrity Impact
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