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High severity8.8NVD Advisory· Published Jun 9, 2026· Updated Jun 12, 2026

CVE-2026-45484

CVE-2026-45484

Description

Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.

Affected products

4
  • Microsoft/Sharepoint Server4 versions
    cpe:2.3:a:microsoft:sharepoint_server:2016:*:*:*:enterprise:*:*:*+ 3 more
    • cpe:2.3:a:microsoft:sharepoint_server:2016:*:*:*:enterprise:*:*:*
    • cpe:2.3:a:microsoft:sharepoint_server:2019:*:*:*:*:*:*:*
    • cpe:2.3:a:microsoft:sharepoint_server:*:*:*:*:subscription:*:*:*range: <16.0.19725.20384
    • (no CPE)

Patches

Vulnerability mechanics

References

1

News mentions

5