CVE-2026-33112
Microsoft SharePoint Server Remote Code Execution vulnerability
MSRC advisory May 12, 2026
Alert details
- Source feed
- Microsoft MSRC
- CVE ID
- CVE-2026-33112
- Affected products
- Microsoft SharePoint Server Remote Code Execution · Microsoft Microsoft SharePoint Server Remote Code Execution · Microsoft
What happened
Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
What it means for your business
Microsoft SharePoint Server Remote Code Execution vulnerability (CVE-2026-33112) was added to Microsoft’s security update guidance. Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network. PremierePC tracks MSRC advisories for Upstate SC businesses — patch or open a ticket if you need help verifying exposure.
EPSS probability
3.10%
Sources
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Need help patching?
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