A tampering vulnerability exists when .NET Core improperly handles specially crafted…
Priority LOW 39Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · High · None
- Fix status
- Fixed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA, GitHub and Red Hat.
Summary
A tampering vulnerability exists when .NET Core improperly handles specially crafted files, aka ".NET Core Tampering Vulnerability." This affects .NET Core 2.1.
Why it matters now
EPSS 0.07258 94th percentileScored 2026-11-07
Fix Fixed Microsoft.NETCore.App (NuGet): 2.1.7Red Hat: 1 advisory
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Microsoft | .NET Core | 2.1 | — | No fix listed | CNA |
| — | Microsoft.NETCore.App (NuGet) | 2.1.0 to before 2.1.7 | 2.1.7 | Patch available | GHSA-5633-f33j-c6f7 |
- .NET Core VendorMicrosoft Affected 2.1 Fixed in — No fix listed CNA
- Microsoft.NETCore.App (NuGet) Vendor— Affected 2.1.0 to before 2.1.7 Fixed in 2.1.7 Patch available GHSA-5633-f33j-c6f7
Remediation
- Fix · GHSA-5633-f33j-c6f7 Microsoft.NETCore.App (NuGet) Fixed in 2.1.7 Advisory →
Red Hat 1 advisory
- RHSA-2018:3676 Released 2018-11-27 · Red Hat rating Moderate.NET Core on Red Hat Enterprise Linux security update
- .NET Core on Red Hat Enterprise Linux ComputeNode (v. 7) rh-dotnet21-dotnet-2.1.500-5.el7, rh-dotnet21-dotnet-host-2.1.6-5.el7, rh-dotnet21-dotnet-runtime-2.1-2.1.6-5.el7 +2
- .NET Core on Red Hat Enterprise Linux Server (v. 7) rh-dotnet21-dotnet-2.1.500-5.el7, rh-dotnet21-dotnet-host-2.1.6-5.el7, rh-dotnet21-dotnet-runtime-2.1-2.1.6-5.el7 +2
- .NET Core on Red Hat Enterprise Linux Workstation (v. 7) rh-dotnet21-dotnet-2.1.500-5.el7, rh-dotnet21-dotnet-host-2.1.6-5.el7, rh-dotnet21-dotnet-runtime-2.1-2.1.6-5.el7 +2
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| .NET Core on Red Hat Enterprise Linux ComputeNode (v. 7) | Fixed | RHSA-2018:3676 |
| .NET Core on Red Hat Enterprise Linux Server (v. 7) | Fixed | RHSA-2018:3676 |
| .NET Core on Red Hat Enterprise Linux Workstation (v. 7) | Fixed | RHSA-2018:3676 |
Not affected: 4 products
- .NET Core 1.0 on Red Hat Enterprise Linux
- .NET Core 1.1 on Red Hat Enterprise Linux
- .NET Core 2.0 on Red Hat Enterprise Linux
- Red Hat Enterprise Linux 8
Timeline
- 2026-10-02 Threatist record created from CVE-2018-8416
- 2026-10-03 Alias added: GHSA-5633-f33j-c6f7
References
More Microsoft Asp.net Core vulnerabilities
- TI-2023-23979 The HTTP/2 protocol allows a denial of service (server resource consumption) because… KEVCVSS 3.1HIGH 7.5
- TI-2023-19596 .NET and Visual Studio Denial of Service Vulnerability KEVCVSS 3.1HIGH 7.5
- TI-2025-34970 ASP.NET Security Feature Bypass Vulnerability CVSS 3.1CRITICAL 9.9
- TI-2024-14164 .NET Denial of Service Vulnerability CVSS 3.1HIGH 7.5
- TI-2023-18092 ASP.NET Core Denial of Service Vulnerability CVSS 3.1HIGH 8.2
- TI-2023-18392 ASP.NET Core Security Feature Bypass Vulnerability CVSS 3.1MEDIUM 6.2
Sources
- CVE-2018-8416 · CVE Program
- CVE-2018-8416 · NVD
- FIRST EPSS
- GHSA-5633-f33j-c6f7 · GitHub Advisory Database · CC BY 4.0
- CVE-2018-8416 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences