CVE-2026-118741: ASP.NET Core Elevation of Privilege Vulnerability

CVE-2026-118741 PUBLISHED CVSS 8.1 HIGH

ASP.NET Core Elevation of Privilege Vulnerability

Reported by microsoft · Published November 10, 2026

Improper authentication in ASP.NET Core allows an unauthorized attacker to elevate privileges over a network.

Risk scores

CVSS 3.1

8.1

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

Vendor	Product	Versions
Microsoft	Microsoft.dotnet-scaffold	10.0.0
Microsoft	Microsoft.dotnet-scaffold-aspnet	9.0.0
Microsoft	Microsoft.DotNet.Web.ProjectTemplates.10.0	10.0.13
Microsoft	Microsoft.DotNet.Web.ProjectTemplates.8.0	8.0.32
Microsoft	Microsoft.DotNet.Web.ProjectTemplates.9.0	9.0.21
Microsoft	Microsoft.VisualStudio.Web.CodeGeneration.Design	NOT_YET_AVAILABLE
Microsoft	Microsoft.VisualStudio.Web.CodeGenerators.Mvc	NOT_YET_AVAILABLE
microsoft	microsoft.dotnet.web.projecttemplates.8.0	8.0.32
microsoft	microsoft.dotnet-scaffold-aspnet	9.0.0
Microsoft	Microsoft.VisualStudio.Web.CodeGenerators.Mvc	*
Microsoft	Microsoft.VisualStudio.Web.CodeGeneration.Design	*
Microsoft	Microsoft.DotNet.Web.ProjectTemplates.10.0	10.0.13
microsoft	microsoft.dotnet.web.projecttemplates.9.0	9.0.21
Microsoft	Microsoft.dotnet-scaffold	10.0.0
Microsoft	Microsoft.DotNet.Web.ProjectTemplates.8.0	8.0.32
microsoft	microsoft.dotnet.web.projecttemplates.10.0	10.0.13
microsoft	microsoft.visualstudio.web.codegenerators.mvc	*
Microsoft	Microsoft.dotnet-scaffold-aspnet	9.0.0
microsoft	microsoft.visualstudio.web.codegeneration.design	*
Microsoft	Microsoft.DotNet.Web.ProjectTemplates.9.0	9.0.21

…and 1 more

The same record, from the CLI:

vulnetix vdb vuln CVE-2026-118741
vulnetix vdb fixes CVE-2026-118741

Or with curl, using the org id and key from your account page:

curl -s -H "Authorization: ApiKey ${VULNETIX_ORG_ID}:${VULNETIX_API_KEY}" \
  "https://api.vdb.vulnetix.com/v2/vuln/CVE-2026-118741/fixes/registry"

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