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Description

Improper authorization in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.

PUBLISHED Reserved 2026-06-29 | Published 2026-07-14 | Updated 2026-07-14 | Assigner microsoft




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

Problem types

CWE-285: Improper Authorization

Product status

16.0.0 (custom) before 16.0.5561.1001
affected

16.0.0 (custom) before 16.0.10417.20175
affected

References

msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58277 (Microsoft SharePoint Elevation of Privilege Vulnerability) vendor-advisory patch

cve.org (CVE-2026-58277)

nvd.nist.gov (CVE-2026-58277)

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