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CVE-2026-47294

Microsoft SharePoint Server Remote Code Execution Vulnerability

HIGH
8
CVSS Score
Published: June 1, 2026 at 06:26 PM UTC
Updated: July 22, 2026 at 08:27 AM UTC
4 products affected across 1 vendorSharePoint ServerSharePoint Server 2019SharePoint Enterprise Server 2016

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Severity
HIGH8
Exploit prediction
EPSS 0.6%
SSVC
No known exploit

Description

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

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

SharePoint Server· Microsoft
95%
v < 16.0.19725.2028016.0.0 ≤ v < 16.0.19725.2028020162019
Affected range stops below 16.0.19725.20280, so it looks safe — our inference, not a vendor statement
SharePoint Enterprise Server 2016· Microsoft
60%
16.0.0 ≤ v < 16.0.5552.100216.0.0
Affected range stops below 16.0.5552.1002, so it looks safe — our inference, not a vendor statement
SharePoint Server 2019· Microsoft
60%
16.0.0 ≤ v < 16.0.10417.2012816.0.0
Affected range stops below 16.0.10417.20128, so it looks safe — our inference, not a vendor statement
SharePoint Server Subscription Edition· Microsoft
60%
16.0.0 ≤ v < 16.0.19725.2028016.0.0
Affected range stops below 16.0.19725.20280, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

Vendor AdvisoryPatch
Source: cverecord
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-47294

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8HIGHmicrosoft
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-78

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