Assessment
Improper authentication in ASP.NET Core allows an unauthorized attacker to elevate privileges over a network.
- Severity
- Important
- CVSS base score
- 8.1
- Impact
- Elevation of Privilege
- Exploitation detected
- No known exploitation (MSRC assessment)
- Exploitability
- Exploitation Less Likely
- Publicly disclosed
- No (MSRC assessment)
- EPSS · 30-day forecast
- No EPSS score collected
- Customer action
- Required: follow the MSRC remediation guidance
More details
- CVSS vector
- 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
- Public detection template
- No Nuclei template is listed in the current collected catalog
- Component
- ASP.NET Core
- Weakness
- CWE-640: Weak Password Recovery Mechanism for Forgotten Password
- Issued by
- Microsoft
- Last revised
- 10 Nov 2026
CVSS 3.1 base metricsRed raises the risk · green lowers it
- Attack vector
- NetworkAV:N
- Attack complexity
- HighAC:H
- Privileges required
- NonePR:N
- User interaction
- NoneUI:N
- Scope
- UnchangedS:U
- Confidentiality
- HighC:H
- Integrity
- HighI:H
- Availability
- HighA:H
Updates that fix it
0 KBsNo KB listed
No KB update is listed in the collected MSRC record. Check the MSRC advisory for product releases and other remedies.
Affected products
Developer Tools, Other
13 affected products
- Microsoft.dotnet-scaffold
- Microsoft.dotnet-scaffold-aspnet
- Microsoft.DotNet.Web.ProjectTemplates.10.0
- Microsoft.DotNet.Web.ProjectTemplates.8.0
- Microsoft.DotNet.Web.ProjectTemplates.9.0
- Microsoft.VisualStudio.Web.CodeGeneration.Design
- Microsoft.VisualStudio.Web.CodeGeneration.Design on .NET 10.0
- Microsoft.VisualStudio.Web.CodeGeneration.Design on .NET 8.0
- Microsoft.VisualStudio.Web.CodeGeneration.Design on .NET 9.0
- Microsoft.VisualStudio.Web.CodeGenerators.Mvc
- Microsoft.VisualStudio.Web.CodeGenerators.Mvc on .NET 10.0
- Microsoft.VisualStudio.Web.CodeGenerators.Mvc on .NET 8.0
- Microsoft.VisualStudio.Web.CodeGenerators.Mvc on .NET 9.0
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