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Highest advisory severityHigh Exploited CISA KEV 1 vendor · 1 advisory

CVE-2026-21519

CVE-2026-21519: 1 tracked advisory record across MS Server. CISA KEV listed; exploitation observed. Compare vendor sources and published fix guidance.

Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.

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Vendor advisory comparison

MS Server

1 advisory
  • Advisory severityHigh7.8

    High [CVE-2026-21519] Desktop Window Manager Elevation of Privilege Vulnerability

    CVE-2026-21519Source published Source updated

    Access of resource using incompatible type ('type confusion') in Desktop Window Manager allows an authorized attacker to elevate privileges locally. Affected products named by the advisory: Windows Server 2016; Windows Server 2016 (Server Core installation); Windows Server 2019; Windows Server 2019 (Server Core installation); and 4 more. Affected products named by the advisory: Windows Server 2022, 23H2 Edition (Server Core installation); Windows Server 2025 (Server Core installation).

    Affected products in this advisory
    • Windows Server 2016 (Server Core installation)
    • Windows Server 2019 (Server Core installation)
    • Windows Server 2022, 23H2 Edition (Server Core installation)
    • Windows Server 2025 (Server Core installation)
    Source-reported affected versions
    • Windows 10 Version 1607 10.0.14393.0 before 10.0.14393.8868
    • Windows 10 Version 1809 10.0.17763.0 before 10.0.17763.8389
    • Windows 10 Version 21H2 10.0.19044.0 before 10.0.19044.6937
    • Windows 10 Version 22H2 10.0.19045.0 before 10.0.19045.6937

    8 more entries in the full advisory.

    Source-reported fixed versions
    • 10.0.14393.8868
    • 10.0.17763.8389
    • 10.0.19044.6937
    • 10.0.19045.6937

    7 more entries in the full advisory.

    Mitigation guidance
    No mitigation guidance extracted; consult the source.
    Full advisory and evidenceOpen source bulletin

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