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Fencer Intel
high 8.8

CVE-2026-88200 json

Microsoft Office SharePoint Elevation of Privilege Vulnerability

published 29d ago modified yesterday also EUVD-2026-100180

cvss
8.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.8%
EPSS 0.8% chance of exploitation in 30 days, percentile 57%
public exploits
0
none known

Summary

Privilege context switching error in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.

Patch / fix

  • Microsoft Microsoft SharePoint Server Subscription Edition 16.0.20326.20190

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CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
29d ago

Exploit prediction

0.81% chance of exploitation in the next 30 days, higher than 57% of all scored CVEs (FIRST EPSS, 2026-11-11).

CVSS scores

assigned by version score vector
CNA 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
CNA 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

  • Microsoft Microsoft SharePoint Server Subscription Edition

Classification

Weakness
  • CWE-270 Privilege Context Switching Error

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.