Authenticated remote code execution
Published Mar 10, 2026 · Updated Mar 10, 2026
Improper input validation in affected Microsoft SharePoint Server releases allows remote authenticated users to execute code over a network. Microsoft has not disclosed the affected component, accepted input, or validation error that makes code execution possible. A network-reachable SharePoint account with low privileges is required, and successful exploitation grants code execution on the server.
Summary
What happened
Improper input validation in affected Microsoft SharePoint Server releases allows remote authenticated users to execute code over a network. Microsoft has not disclosed the affected component, accepted input, or validation error that makes code execution possible. A network-reachable SharePoint account with low privileges is required, and successful exploitation grants code execution on the server.
The record
- CVE
- CVE-2026-26106
- Published
- Mar 10, 2026
- Updated
- Mar 10, 2026
- Vendor
- Microsoft
- Product
- Microsoft SharePoint Enterprise Server 2016
- Classifications
- CWE-20, T1190
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Mar 10, 2026CVE publishedPublication date reported by the CVE source.
- Mar 10, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=16.0.0 <16.0.5543.1000
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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