Microsoft SharePoint Server Subscription Edition vulnerability

What happened

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

Affected versions

Microsoft SharePoint Server Subscription Edition: 16.0.0 through before 16.0.20326.20190 (custom) Fixed: See vendor advisory.

Why it matters

Review the vendor advisory and exposure of the affected product to determine operational impact.

Detection & mitigation

• Apply vendor-provided updates or mitigations.
• Review affected product exposure and access logs.