cve-2026-45479

CVE-2026-45479 is a Microsoft SharePoint Server spoofing vulnerability listed in the Microsoft Security Update Guide as of June 2026. While the public record at publication time clearly identifies the affected product family, the underlying technical mechanism is less detailed. For administrators, a SharePoint spoofing bug is not as critical as unauthenticated remote-code-execution, but it is not harmless. The post-ToolShell era has shown that SharePoint bugs become dangerous fastest when defenders wait for perfect detail before acting. This tag covers discussions around CVE-2026-45479, including patch urgency, risk assessment, and lessons from past SharePoint vulnerabilities.