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Highest advisory severityHigh 2 vendors · 2 advisories

CVE-2026-66805

CVE-2026-66805: 2 tracked advisory records across MS Server, Red Hat. 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 severityHigh8.8

    High [CVE-2026-66805] Microsoft SharePoint Server Remote Code Execution Vulnerability

    CVE-2026-66805Source published Source updated

    Microsoft SharePoint Server Remote Code Execution Vulnerability Affected products named by the advisory: Microsoft SharePoint Enterprise Server 2016; Microsoft SharePoint Server 2019; Microsoft SharePoint Server Subscription Edition.

    Affected products in this advisory
    • Microsoft SharePoint Enterprise Server 2016
    • Microsoft SharePoint Server 2019
    • Microsoft SharePoint Server Subscription Edition
    Source-reported affected versions
    • Microsoft SharePoint Enterprise Server 2016 16.0.0 before 16.0.5565.1001
    • Microsoft SharePoint Server 2019 16.0.0 before 16.0.10417.20198
    • Microsoft SharePoint Server Subscription Edition 16.0.0 before 16.0.19725.20522
    Source-reported fixed versions
    • KB5002905 (build 16.0.5565.1001)
    • KB5002906 (build 16.0.5565.1001)
    • KB5002894 (build 16.0.10417.20198)
    • KB5002896 (build 16.0.10417.20198)

    1 more entries in the full advisory.

    Mitigation guidance
    • Install the applicable security update for your platform: KB5002905, KB5002906, KB5002894, KB5002896, KB5002893 (see the Microsoft Update Catalog).
    Full advisory and evidenceOpen source bulletin

Red Hat

1 advisory
  • Advisory severityHigh8.0

    High [CVE-2026-66805] stored DOM XSS via unescaped pod logs in document.write

    CVE-2026-66805Source published

    stored DOM XSS via unescaped pod logs in document.write. Red Hat rates this important (CVSS 8). Weakness: CWE-79. Red Hat lists fixing advisory RHSA-2026:54432 with package multicluster-engine/console-mce-rhel9:1787079359, rhacm2/console-rhel9:1787339248, multicluster-engine/console-mce-rhel9:1787264250, rhacm2/console-rhel9:1787339213.

    Related products — impact not confirmed
    No product details extracted. Check the source bulletin.
    Source-reported affected versions
    Affected-version details not available in this record.
    Source-reported fixed versions
    • multicluster-engine/console-mce-rhel9:1787079359
    • rhacm2/console-rhel9:1787339248
    • multicluster-engine/console-mce-rhel9:1787264250
    • rhacm2/console-rhel9:1787339213

    9 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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