CVSS 3.1
8.1 highCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:HCVE-2026-118741 ASP.NET Core Elevation of Privilege Vulnerability
High (8.1) in microsoft. EPSS 0.8% estimated probability of exploitation activity in the next 30 days.
On this page
Improper authentication in ASP.NET Core allows an unauthorized attacker to elevate privileges over a network.
Severity
- EPSS
- 0.8% estimated probability of exploitation activity in the next 30 days; 56th percentile. Scored 2026-11-13. A forecast for this CVE across the internet, not for your own systems.
- CISA's assessment (SSVC)
- Exploitation: none · Automatable: no · Technical impact: total, assessed 2026-11-10. From CISA's Vulnrichment in the CVE List: whether it is exploited, whether exploiting it can be automated, and how much control it gives.
- CWE
- CWE-640 Weak Password Recovery Mechanism for Forgotten Password
- OWASP Top 10
- A07:2025 Authentication Failures
- Published
- Modified
- Assigned by
- microsoft (CNA)
- NVD analysis
- Awaiting analysis
- Record from
- the NVD, synced
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Explain CVE-2026-118741 for an engineer deciding whether to act. Use https://cve.bz/api/public/cves/CVE-2026-118741?via=ask-ai-copy and https://cve.bz/cve/CVE-2026-118741?via=ask-ai-copy as the source of truth: what is affected and which versions fix it, whether it is in CISA KEV, public exploits, and its EPSS (an internet-wide 30-day estimate of exploitation activity, not a forecast for my systems). If they give no fixed versions, use the CVE record https://cveawg.mitre.org/api/cve/CVE-2026-118741 or the vendor advisory, not third-party mirrors. Tell me how to check whether I am affected and how to verify a fix. Cite the sources and say where they are uncertain.Opens a third-party assistant; its answer is its own, not cve.bz's. The prompt holds only this CVE's id and public links.
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Affected
- microsoft:microsoft.dotnet-scaffold version 10.0
- microsoft:microsoft.dotnet-scaffold version 20.x
- microsoft:microsoft.dotnet-scaffold-aspnet version 10.0.0-rc.1.25458.5
- microsoft:microsoft.dotnet-scaffold-aspnet version 10.0.0-rc.1.25468.1
- microsoft:microsoft.dotnet-scaffold-aspnet version 9.0
- microsoft:microsoft.dotnet-scaffold-aspnet version 9.0.0-preview.8.24467.5
- microsoft:microsoft.dotnet-scaffold-aspnet version 9.0.0-preview.9.24509.5
- microsoft:microsoft.dotnet.web.projecttemplates.10.0
- microsoft:microsoft.dotnet.web.projecttemplates.8.0
- microsoft:microsoft.dotnet.web.projecttemplates.9.0
- microsoft:microsoft.visualstudio.web.codegeneration.design
- microsoft:microsoft.visualstudio.web.codegeneration.design version 10.0
- microsoft:microsoft.visualstudio.web.codegeneration.design version 11.0.0-preview.1.26156.3
- microsoft:microsoft.visualstudio.web.codegeneration.design version 11.0.0-preview.1.26230.3
- microsoft:microsoft.visualstudio.web.codegeneration.design version 8.0
- microsoft:microsoft.visualstudio.web.codegeneration.design version 9.0
- microsoft:microsoft.visualstudio.web.codegenerators.mvc
- microsoft:microsoft.visualstudio.web.codegenerators.mvc version 10.0
- microsoft:microsoft.visualstudio.web.codegenerators.mvc version 11.0.0-preview.1.26156.3
- microsoft:microsoft.visualstudio.web.codegenerators.mvc version 11.0.0-preview.1.26230.3
- microsoft:microsoft.visualstudio.web.codegenerators.mvc version 8.0
- microsoft:microsoft.visualstudio.web.codegenerators.mvc version 9.0
Versions
From the CNA's record in the CVE List.
| Product | Affected |
|---|---|
| Microsoft.dotnet-scaffold version 10.0 | from 10.0.0 before 20.3.0 |
| Microsoft.dotnet-scaffold version 20.x | from 20.0.0-preview.1.26156.3 before 20.3.0 |
| Microsoft.dotnet-scaffold-aspnet version 10.0.0-rc.1.25458.5 | from 10.0.0-rc.1.25458.5 before 20.3.0 |
| Microsoft.dotnet-scaffold-aspnet version 10.0.0-rc.1.25468.1 | from 10.0.0-rc.1.25468.1 before 20.3.0 |
| Microsoft.dotnet-scaffold-aspnet version 9.0 | from 9.0.0 before 20.3.0 |
| Microsoft.dotnet-scaffold-aspnet version 9.0.0-preview.8.24467.5 | from 9.0.0-preview.8.24467.5 before 20.3.0 |
| Microsoft.dotnet-scaffold-aspnet version 9.0.0-preview.9.24509.5 | from 9.0.0-preview.9.24509.5 before 20.3.0 |
| Microsoft.DotNet.Web.ProjectTemplates.10.0 | from 10.0.13 before 10.0.15 |
| Microsoft.DotNet.Web.ProjectTemplates.8.0 | from 8.0.32 before 8.0.34 |
| Microsoft.DotNet.Web.ProjectTemplates.9.0 | from 9.0.21 before 9.0.23 |
| Microsoft.VisualStudio.Web.CodeGeneration.Design | from NOT_YET_AVAILABLE before 9.0.13 |
| Microsoft.VisualStudio.Web.CodeGeneration.Design version 10.0 | from 10.0.0-rc.1.25458.5 before 10.0.3 |
| Microsoft.VisualStudio.Web.CodeGeneration.Design version 11.0.0-preview.1.26156.3 | from 11.0.0-preview.1.26156.3 before publication |
| Microsoft.VisualStudio.Web.CodeGeneration.Design version 11.0.0-preview.1.26230.3 | from 11.0.0-preview.1.26230.3 before publication |
| Microsoft.VisualStudio.Web.CodeGeneration.Design version 8.0 | from 8.0.0-preview.1.23117.2 before 8.0.24 |
| Microsoft.VisualStudio.Web.CodeGeneration.Design version 9.0 | from 9.0.0-preview.1.24112.3 before 9.0.13 |
| Microsoft.VisualStudio.Web.CodeGenerators.Mvc | from NOT_YET_AVAILABLE before 9.0.13 |
| Microsoft.VisualStudio.Web.CodeGenerators.Mvc version 10.0 | from 10.0.0-rc.1.25458.5 before 10.0.3 |
| Microsoft.VisualStudio.Web.CodeGenerators.Mvc version 11.0.0-preview.1.26156.3 | from 11.0.0-preview.1.26156.3 before publication |
| Microsoft.VisualStudio.Web.CodeGenerators.Mvc version 11.0.0-preview.1.26230.3 | from 11.0.0-preview.1.26230.3 before publication |
| Microsoft.VisualStudio.Web.CodeGenerators.Mvc version 8.0 | from 8.0.0-preview.1.23117.2 before 8.0.24 |
| Microsoft.VisualStudio.Web.CodeGenerators.Mvc version 9.0 | from 9.0.0-preview.1.24112.3 before 9.0.13 |
Fix and patched versions
Linux distributions
| Distribution | Release | Package | Fixed in | Advisory |
|---|---|---|---|---|
| Ubuntu | 22.04:LTS | dotnet7 | no fix listed | UBUNTU-CVE-2026-118741 |
| Alpine | v3.22, v3.23, v3.24 | dotnet8-runtime | 8.0.34-r0 | ALPINE-CVE-2026-118741 |
| Alpine | v3.22, v3.23, v3.24 | dotnet9-runtime | 9.0.23-r0 | ALPINE-CVE-2026-118741 |
| Alpine | v3.24 | dotnet10-runtime | 10.0.15-r0 | ALPINE-CVE-2026-118741 |
From the distributions' data via OSV.dev: Ubuntu Security Notices © Canonical Ltd., CC BY-SA 4.0; the Alpine secdb, CC BY-SA 4.0. Modified: reformatted and linked to CVE records. Credits. On the distributions' own pages: Ubuntu · Alpine.
Attack patterns (CAPEC)
- CAPEC-50 Password Recovery Exploitation Likelihood: Medium · Severity: High
The attack patterns MITRE's CAPEC relates to this record's weaknesses, as MITRE names them. Credits.