← Back to feedVulnerabilities & PatchesEmerging1 sourceSep 22, 2026 · 14:00via Microsoft Security Update GuideCVE-2026-57099 ASP.NET Core Denial of Service VulnerabilityBriefUpdated an acknowledgement. This is an informational change only.Read more on Microsoft Security Update Guide→Vulnerabilities & PatchesCVE-2026-57099Related stories