CVE-2026-56164

Summary

Missing authentication for critical function in Microsoft Office SharePoint allows an unauthorized attacker to elevate privileges over a network.

Affected Software

VendorProductVersion RangeStatus
MicrosoftMicrosoft SharePoint Enterprise Server 201616.0.0 < 16.0.5561.1001affected
MicrosoftMicrosoft SharePoint Server 201916.0.0 < 16.0.10417.20175affected
MicrosoftMicrosoft SharePoint Server Subscription Edition16.0.0 < 16.0.19725.20434affected

Weaknesses

  • CWE-306: CWE-306: Missing Authentication for Critical Function

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: active
    • Automatable: yes
    • Technical Impact: partial

Additional References

References