CVE-2026-110044: Microsoft Office SharePoint Remote Code Execution Vulnerability

Q: What level of access does an attacker need to exploit this vulnerability?

An attacker must be authorized, meaning they need valid access to the affected SharePoint environment. No user interaction is required once they have that access.

Q: Can this be exploited remotely?

Yes. The vulnerability is network-accessible and has low attack complexity, allowing an authorized attacker to execute code remotely.

Q: What is the potential impact of successful exploitation?

Successful exploitation can allow code execution and has high potential impact on confidentiality, integrity, and availability.

Published Nov 10, 2026

Updated

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

Other sources

Microsoft Office SharePoint Remote Code Execution Vulnerability

— Microsoft

Affected Software

1 affected componentFixes available

Microsoft SharePoint Server Subscription Edition<16.0.20326.20278

16.0.20326.20278

Remediation

Recommended actions to resolve this vulnerability, in priority order.

Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 16.0.20326.20278Patch KB5002945

Event History

Nov 10, 2026

CVE Published

via Microsoft·04:00 PM

Data Sourced

via Microsoft·04:00 PM

DescriptionSeverityWeakness

Data Sourced

via Microsoft·04:00 PM

Affected Software

CVE Published

via MITRE·06:20 PM

Data Sourced

via MITRE·06:20 PM

DescriptionSeverity

Data Sourced

via NVD·07:18 PM

DescriptionSeverityWeakness

Frequently Asked Questions

What level of access does an attacker need to exploit this vulnerability?

An attacker must be authorized, meaning they need valid access to the affected SharePoint environment. No user interaction is required once they have that access.

Can this be exploited remotely?

Yes. The vulnerability is network-accessible and has low attack complexity, allowing an authorized attacker to execute code remotely.

What is the potential impact of successful exploitation?

Successful exploitation can allow code execution and has high potential impact on confidentiality, integrity, and availability.

CVE-2026-110044: Microsoft Office SharePoint Remote Code Execution Vulnerability

Other sources

Affected Software

Remediation

Event History

Frequently Asked Questions

What level of access does an attacker need to exploit this vulnerability?

Can this be exploited remotely?

What is the potential impact of successful exploitation?

Company

Resources

Contact

Frequently Asked Questions

What level of access does an attacker need to exploit this vulnerability?

Can this be exploited remotely?

What is the potential impact of successful exploitation?