VDB

CVE-2026-45484

CVE-2026-45484 PUBLISHED CVSS 8.8 HIGH

Reported by microsoft · Published June 9, 2026

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

Risk Scores

CVSS 3.1
8.8
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

Affected Products

VendorProductVersions
MicrosoftMicrosoft SharePoint Enterprise Server 201616.0.0
MicrosoftMicrosoft SharePoint Server 201916.0.0
MicrosoftMicrosoft SharePoint Server Subscription Edition16.0.0
microsoftsharepoint_server16.0.0, 16.0.0, 16.0.0
MicrosoftMicrosoft SharePoint Server Subscription Edition16.0.0, 16.0.0, 16.0.0
microsoftsharepoint_server_201616.0.0, 16.0.0, 16.0.0
MicrosoftMicrosoft SharePoint Enterprise Server 201616.0.0, 16.0.0, 16.0.0
MicrosoftMicrosoft SharePoint Server 201916.0.0, 16.0.0, 16.0.0
microsoftsharepoint_server_201916.0.0, 16.0.0, 16.0.0

Timeline

  • Jun 9, 2026 CVE Published
  • Jun 10, 2026 Coalition ESS Score
  • Jun 10, 2026 Security Advisory
  • Jun 10, 2026 Security Advisory
  • Jul 15, 2026 CVE Updated

References

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