CVE-2025-29976 — Microsoft SharePoint Server Elevation of Privilege Vulnerability

Executive Summary

Improper privilege management in Microsoft Office SharePoint allows an authorized attacker to elevate privileges locally.

Overview

7.8

CVSS HIGH

Important

MS Severity

Not Exploited

MS Exploit Status

More Likely

MS Exploit Likelihood

Category Elevation of Privilege

Weakness CWE-269: Improper Privilege Management

Released May 13 2025

Last Updated May 13 2025

Publicly Disclosed No

CISA KEV Not Listed

Known Exploits None Known

EPSS Score 0.00615 — 0.46454 percentile

NVD CVSS 7.8 HIGH — matches MSRC

CVSS Vector

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

ATTACK VECTOR

Local

ATTACK COMPLEXITY

Low

PRIVILEGES REQUIRED

Low

USER INTERACTION

None

SCOPE

Unchanged

CONFIDENTIALITY

High

INTEGRITY

High

AVAILABILITY

High

EXPLOIT CODE MATURITY

Unproven

REMEDIATION LEVEL

Official Fix

REPORT CONFIDENCE

Confirmed

Temporal Score: 6.8

EPSS Score

0.00615

probability of exploitation in the next 30 days

0.46454 percentile - updated 2026-08-14

View on FIRST.org

Affected Products

1 affected product

Product	KB Article	Severity	Impact	Restart Required
Microsoft SharePoint Enterprise Server 2016 5002722 (Security Update) 5002712 (Security Update) Important Elevation of Privilege 5002692 5002682 Base: 7.8 Temporal: 6.8 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C 16.0.5500.1001 Maybe None Microsoft SharePoint Server 2019 5002708 (Security Update) 5002706 (Security Update) Important Elevation of Privilege 5002691 5002680 Base: 7.8 Temporal: 6.8 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C 16.0.10417.20010 Maybe None Microsoft SharePoint Server Subscription Edition	`5002709 (Security Update)`	Important	Elevation of Privilege	Maybe

Patches

1 patch

Article	Type	Restart
`5002709`	Security Update	Maybe

Exploits & PoC

No public exploit or PoC has been linked for this CVE yet. When available, references are sourced from public repositories and may be unverified or non-functional — review carefully before use.

Detection Rules

No public Sigma or Nuclei detection rule has been mapped to this CVE yet. Coverage is concentrated on exploited / high-profile vulnerabilities; check SigmaHQ for updates.

Acknowledgments

Yansen with PulseSecure Pte Ltd.

References

MSRC Advisory MITRE NVD