CVE-2026-54108: Microsoft SharePoint Server Spoofing Vulnerability
Published Jul 14, 2026
·Updated
External control of file name or path in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.
Other sources
Microsoft SharePoint Server Spoofing Vulnerability
— Microsoft
Affected Software
6 affected componentsFixes available
Microsoft SharePoint Server Subscription Edition<16.0.19725.20434
16.0.19725.20434
Microsoft SharePoint Server 2019<16.0.10417.20175
16.0.10417.20175
Microsoft SharePoint Enterprise Server 2016<16.0.5561.1001
16.0.5561.1001
Microsoft SharePoint Server<16.0.19725.20434
Microsoft SharePoint Server=2016
Microsoft SharePoint Server=2019
Remediation
Event History
Jul 14, 2026
CVE Published
via Microsoft·02:00 PM
Data Sourced
via Microsoft·02:00 PM
DescriptionSeverityWeakness
Data Sourced
via Microsoft·02:00 PM
Affected Software
Updated
via Microsoft·02:00 PM
Description
CVE Published
via MITRE·05:05 PM
Data Sourced
via MITRE·05:05 PM
DescriptionSeverity
Data Sourced
via NVD·05:17 PM
RemedyDescriptionSeverityWeaknessAffected Software
Frequently Asked Questions
1
What is the severity of CVE-2026-54108?
CVE-2026-54108 has a medium severity rating of 6.5.
2
How do I fix CVE-2026-54108?
To fix CVE-2026-54108, apply the available patch from Microsoft.
3
What software is affected by CVE-2026-54108?
CVE-2026-54108 affects Microsoft SharePoint Server, Microsoft SharePoint Server Subscription Edition, Microsoft SharePoint Server 2019, and Microsoft SharePoint Enterprise Server 2016.
4
What type of vulnerability is CVE-2026-54108?
CVE-2026-54108 is a spoofing vulnerability that allows an attacker to control the file name or path.
5
What is the risk associated with CVE-2026-54108?
CVE-2026-54108 has a risk score of 38, indicating a notable potential impact on affected systems.