.NET and Visual Studio Denial of Service Vulnerability
Priority CRITICAL 90Exploited in the wildCWE-400Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA, GitHub, Red Hat and Microsoft. Impact type from Microsoft.
Summary
.NET and Visual Studio Denial of Service Vulnerability
Why it matters now
Exploitation Active In CISA KEV since 2023-08-09CISA due date 2023-08-30
EPSS 0.14127 96th percentileScored 2026-11-07
Fix Fixed Microsoft.AspNetCore.App.Runtime.win-arm64 (NuGet): 7.0.10, 6.0.21Microsoft.AspNetCore.App.Runtime.win-x64 (NuGet): 7.0.10, 6.0.21+3 more productsRed Hat: 7 advisoriesMicrosoft: 2 updates
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Active
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Microsoft | .NET 6.0 | 6.0.0 to before 6.0.21 | 6.0.21 | Patch available | CNA |
| Microsoft | .NET 7.0 | 7.0.0 to before 7.0.10 | 7.0.10 | Patch available | CNA |
| Microsoft | ASP.NET Core 2.1 | 2.0 to before 2.1.40 | 2.1.40 | Patch available | CNA |
| Microsoft | Microsoft Visual Studio 2022 version 17.2 | 17.2.0 to before 17.2.18 | 17.2.18 | Patch available | CNA |
| Microsoft | Microsoft Visual Studio 2022 version 17.4 | 17.4.0 to before 17.4.10 | 17.4.10 | Patch available | CNA |
| Microsoft | Microsoft Visual Studio 2022 version 17.6 | 17.6.0 to before 17.6.6 | 17.6.6 | Patch available | CNA |
| — | Microsoft.AspNetCore.App.Runtime.win-arm64 (NuGet) | 7.0.0 to before 7.0.10 | 7.0.10 | Patch available | GHSA-vmch-3w2x-vhgq |
| — | Microsoft.AspNetCore.App.Runtime.win-x64 (NuGet) | 7.0.0 to before 7.0.10 | 7.0.10 | Patch available | GHSA-vmch-3w2x-vhgq |
| — | Microsoft.AspNetCore.App.Runtime.win-x86 (NuGet) | 7.0.0 to before 7.0.10 | 7.0.10 | Patch available | GHSA-vmch-3w2x-vhgq |
| — | Microsoft.AspNetCore.Server.Kestrel.Transport.Libuv (NuGet) | 6.0.0 to before 6.0.21 | 6.0.21 | Patch available | GHSA-vmch-3w2x-vhgq |
| — | Microsoft.AspNetCore.App.Runtime.win-arm64 (NuGet) | 6.0.0 to before 6.0.21 | 6.0.21 | Patch available | GHSA-vmch-3w2x-vhgq |
| — | Microsoft.AspNetCore.App.Runtime.win-x64 (NuGet) | 6.0.0 to before 6.0.21 | 6.0.21 | Patch available | GHSA-vmch-3w2x-vhgq |
| — | Microsoft.AspNetCore.App.Runtime.win-x86 (NuGet) | 6.0.0 to before 6.0.21 | 6.0.21 | Patch available | GHSA-vmch-3w2x-vhgq |
| — | Microsoft.AspNetCore.Server.Kestrel.Transport.Libuv (NuGet) | before 2.1.40 | 2.1.40 | Patch available | GHSA-vmch-3w2x-vhgq |
| — | Microsoft.AspNetCore.Server.Kestrel.Transport.Sockets (NuGet) | before 2.1.40 | 2.1.40 | Patch available | GHSA-vmch-3w2x-vhgq |
- .NET 6.0 VendorMicrosoft Affected 6.0.0 to before 6.0.21 Fixed in 6.0.21 Patch available CNA
- .NET 7.0 VendorMicrosoft Affected 7.0.0 to before 7.0.10 Fixed in 7.0.10 Patch available CNA
- ASP.NET Core 2.1 VendorMicrosoft Affected 2.0 to before 2.1.40 Fixed in 2.1.40 Patch available CNA
- Microsoft Visual Studio 2022 version 17.2 VendorMicrosoft Affected 17.2.0 to before 17.2.18 Fixed in 17.2.18 Patch available CNA
- Microsoft Visual Studio 2022 version 17.4 VendorMicrosoft Affected 17.4.0 to before 17.4.10 Fixed in 17.4.10 Patch available CNA
- Microsoft Visual Studio 2022 version 17.6 VendorMicrosoft Affected 17.6.0 to before 17.6.6 Fixed in 17.6.6 Patch available CNA
- Microsoft.AspNetCore.App.Runtime.win-arm64 (NuGet) Vendor— Affected 7.0.0 to before 7.0.10 Fixed in 7.0.10 Patch available GHSA-vmch-3w2x-vhgq
- Microsoft.AspNetCore.App.Runtime.win-x64 (NuGet) Vendor— Affected 7.0.0 to before 7.0.10 Fixed in 7.0.10 Patch available GHSA-vmch-3w2x-vhgq
- Microsoft.AspNetCore.App.Runtime.win-x86 (NuGet) Vendor— Affected 7.0.0 to before 7.0.10 Fixed in 7.0.10 Patch available GHSA-vmch-3w2x-vhgq
- Microsoft.AspNetCore.Server.Kestrel.Transport.Libuv (NuGet) Vendor— Affected 6.0.0 to before 6.0.21 Fixed in 6.0.21 Patch available GHSA-vmch-3w2x-vhgq
- Microsoft.AspNetCore.App.Runtime.win-arm64 (NuGet) Vendor— Affected 6.0.0 to before 6.0.21 Fixed in 6.0.21 Patch available GHSA-vmch-3w2x-vhgq
- Microsoft.AspNetCore.App.Runtime.win-x64 (NuGet) Vendor— Affected 6.0.0 to before 6.0.21 Fixed in 6.0.21 Patch available GHSA-vmch-3w2x-vhgq
- Microsoft.AspNetCore.App.Runtime.win-x86 (NuGet) Vendor— Affected 6.0.0 to before 6.0.21 Fixed in 6.0.21 Patch available GHSA-vmch-3w2x-vhgq
- Microsoft.AspNetCore.Server.Kestrel.Transport.Libuv (NuGet) Vendor— Affected before 2.1.40 Fixed in 2.1.40 Patch available GHSA-vmch-3w2x-vhgq
- Microsoft.AspNetCore.Server.Kestrel.Transport.Sockets (NuGet) Vendor— Affected before 2.1.40 Fixed in 2.1.40 Patch available GHSA-vmch-3w2x-vhgq
CPE configurations NVD · 5
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:* | 6.0.0 to before 6.0.21; 7.0.0 to before 7.0.10 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:asp.net_core:*:*:*:*:*:*:*:* | 2.1 to before 2.1.40 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:visual_studio_2022:*:*:*:*:*:*:*:* | 17.2.0 to before 17.2.18; 17.4.0 to before 17.4.10; 17.6.0 to before 17.6.6 | Vulnerable | Microsoft |
| cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:* | 37 | Vulnerable | Fedoraproject |
| cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:* | 38 | Vulnerable | Fedoraproject |
- cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:* Versions 6.0.0 to before 6.0.21; 7.0.0 to before 7.0.10 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:asp.net_core:*:*:*:*:*:*:*:* Versions 2.1 to before 2.1.40 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:visual_studio_2022:*:*:*:*:*:*:*:* Versions 17.2.0 to before 17.2.18; 17.4.0 to before 17.4.10; 17.6.0 to before 17.6.6 Vulnerable ·Microsoft
- cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:* Versions 37 Vulnerable ·Fedoraproject
- cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:* Versions 38 Vulnerable ·Fedoraproject
Remediation
- Fix · GHSA-vmch-3w2x-vhgq Microsoft.AspNetCore.App.Runtime.win-arm64 (NuGet) Fixed in 7.0.10 Advisory →
- Fix · GHSA-vmch-3w2x-vhgq Microsoft.AspNetCore.App.Runtime.win-x64 (NuGet) Fixed in 7.0.10 Advisory →
- Fix · GHSA-vmch-3w2x-vhgq Microsoft.AspNetCore.App.Runtime.win-x86 (NuGet) Fixed in 7.0.10 Advisory →
- Fix · GHSA-vmch-3w2x-vhgq Microsoft.AspNetCore.Server.Kestrel.Transport.Libuv (NuGet) Fixed in 6.0.21 Advisory →
- Fix · GHSA-vmch-3w2x-vhgq Microsoft.AspNetCore.App.Runtime.win-arm64 (NuGet) Fixed in 6.0.21 Advisory →
- Fix · GHSA-vmch-3w2x-vhgq Microsoft.AspNetCore.App.Runtime.win-x64 (NuGet) Fixed in 6.0.21 Advisory →
- Fix · GHSA-vmch-3w2x-vhgq Microsoft.AspNetCore.App.Runtime.win-x86 (NuGet) Fixed in 6.0.21 Advisory →
- Fix · GHSA-vmch-3w2x-vhgq Microsoft.AspNetCore.Server.Kestrel.Transport.Libuv (NuGet) Fixed in 2.1.40 Advisory →
- Fix · GHSA-vmch-3w2x-vhgq Microsoft.AspNetCore.Server.Kestrel.Transport.Sockets (NuGet) Fixed in 2.1.40 Advisory →
Red Hat 7 advisories
- RHSA-2023:4643 Released 2023-08-14 · Red Hat rating Important.NET 7.0 security, bug fix, and enhancement update
- Red Hat Enterprise Linux AppStream (v. 8) aspnetcore-runtime-7.0-7.0.10-1.el8_8, aspnetcore-targeting-pack-7.0-7.0.10-1.el8_8, dotnet-7.0.110-1.el8_8 +9
- Red Hat Enterprise Linux CRB (v. 8) dotnet-sdk-7.0-source-built-artifacts-7.0.110-1.el8_8
- RHSA-2023:4645 Released 2023-08-14 · Red Hat rating Important.NET 6.0 security, bug fix, and enhancement update
- Red Hat Enterprise Linux AppStream (v. 8) aspnetcore-runtime-6.0-6.0.21-1.el8_8, aspnetcore-targeting-pack-6.0-6.0.21-1.el8_8, dotnet-apphost-pack-6.0-6.0.21-1.el8_8 +6
- Red Hat Enterprise Linux CRB (v. 8) dotnet-sdk-6.0-source-built-artifacts-6.0.121-1.el8_8
- RHSA-2023:4644 Released 2023-08-14 · Red Hat rating Important.NET 6.0 security, bug fix, and enhancement update
- Red Hat Enterprise Linux AppStream (v. 9) aspnetcore-runtime-6.0-6.0.21-1.el9_2, aspnetcore-targeting-pack-6.0-6.0.21-1.el9_2, dotnet-apphost-pack-6.0-6.0.21-1.el9_2 +6
- Red Hat Enterprise Linux CRB (v. 9) dotnet-sdk-6.0-source-built-artifacts-6.0.121-1.el9_2
Show 4 more Red Hat advisories
- RHSA-2023:4642 Released 2023-08-14 · Red Hat rating Important.NET 7.0 security, bug fix, and enhancement update
- Red Hat Enterprise Linux AppStream (v. 9) aspnetcore-runtime-7.0-7.0.10-1.el9_2, aspnetcore-targeting-pack-7.0-7.0.10-1.el9_2, dotnet-apphost-pack-7.0-7.0.10-1.el9_2 +8
- Red Hat Enterprise Linux CRB (v. 9) dotnet-sdk-7.0-source-built-artifacts-7.0.110-1.el9_2
- RHSA-2023:4641 Released 2023-08-14 · Red Hat rating Importantrh-dotnet60-dotnet security, bug fix, and enhancement update
- .NET Core on Red Hat Enterprise Linux ComputeNode (v. 7) rh-dotnet60-aspnetcore-runtime-6.0-6.0.21-1.el7_9, rh-dotnet60-aspnetcore-targeting-pack-6.0-6.0.21-1.el7_9, rh-dotnet60-dotnet-6.0.121-1.el7_9 +9
- .NET Core on Red Hat Enterprise Linux Server (v. 7) rh-dotnet60-aspnetcore-runtime-6.0-6.0.21-1.el7_9, rh-dotnet60-aspnetcore-targeting-pack-6.0-6.0.21-1.el7_9, rh-dotnet60-dotnet-6.0.121-1.el7_9 +9
- .NET Core on Red Hat Enterprise Linux Workstation (v. 7) rh-dotnet60-aspnetcore-runtime-6.0-6.0.21-1.el7_9, rh-dotnet60-aspnetcore-targeting-pack-6.0-6.0.21-1.el7_9, rh-dotnet60-dotnet-6.0.121-1.el7_9 +9
- RHSA-2023:4640 Released 2023-08-14 · Red Hat rating Important.NET 6.0 security update
- Red Hat CodeReady Linux Builder EUS (v.8.6) dotnet-sdk-6.0-source-built-artifacts-6.0.121-1.el8_6
- Red Hat Enterprise Linux AppStream EUS (v.8.6) aspnetcore-runtime-6.0-6.0.21-1.el8_6, aspnetcore-targeting-pack-6.0-6.0.21-1.el8_6, dotnet-6.0.121-1.el8_6 +9
- RHSA-2023:4639 Released 2023-08-14 · Red Hat rating Important.NET 6.0 security update
- Red Hat CodeReady Linux Builder EUS (v.9.0) dotnet-sdk-6.0-source-built-artifacts-6.0.121-1.el9_0
- Red Hat Enterprise Linux AppStream EUS (v.9.0) aspnetcore-runtime-6.0-6.0.21-1.el9_0, aspnetcore-targeting-pack-6.0-6.0.21-1.el9_0, dotnet-apphost-pack-6.0-6.0.21-1.el9_0 +8
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| .NET Core on Red Hat Enterprise Linux ComputeNode (v. 7) | Fixed | RHSA-2023:4641 |
| .NET Core on Red Hat Enterprise Linux Server (v. 7) | Fixed | RHSA-2023:4641 |
| .NET Core on Red Hat Enterprise Linux Workstation (v. 7) | Fixed | RHSA-2023:4641 |
| Red Hat CodeReady Linux Builder EUS (v.8.6) | Fixed | RHSA-2023:4640 |
| Red Hat CodeReady Linux Builder EUS (v.9.0) | Fixed | RHSA-2023:4639 |
| Red Hat Enterprise Linux AppStream (v. 8) | Fixed | RHSA-2023:4643, RHSA-2023:4645 |
| Red Hat Enterprise Linux AppStream (v. 9) | Fixed | RHSA-2023:4642, RHSA-2023:4644 |
| Red Hat Enterprise Linux AppStream EUS (v.8.6) | Fixed | RHSA-2023:4640 |
| Red Hat Enterprise Linux AppStream EUS (v.9.0) | Fixed | RHSA-2023:4639 |
| Red Hat Enterprise Linux CRB (v. 8) | Fixed | RHSA-2023:4643, RHSA-2023:4645 |
| Red Hat Enterprise Linux CRB (v. 9) | Fixed | RHSA-2023:4642, RHSA-2023:4644 |
Microsoft
Microsoft's page for this CVE →
- Impact
- Denial of Service
- Exploited
- Yes
- Publicly disclosed
- No
- Exploitability
- Exploitation Detected
| Product | Status | Plan or fix |
|---|---|---|
| ASP.NET Core 2.1 | Fixed | 2.1.40 · Security Update |
| Microsoft Visual Studio 2022 version 17.2 | Fixed | 17.2.18 · Security Update |
| Microsoft Visual Studio 2022 version 17.4 | Fixed | 17.4.10 · Security Update |
| Microsoft Visual Studio 2022 version 17.6 | Fixed | 17.6.6 · Security Update |
Timeline
- 2023-08-09 Added to CISA KEV
- 2026-10-02 Threatist record created from CVE-2023-38180
- 2026-10-03 Alias added: GHSA-vmch-3w2x-vhgq
References
Other 6
- https://github.com/dotnet/runtime/security/advisories/GHSA-vmch-3w2x-vhgq
- https://github.com/dotnet/runtime/issues/90170
- https://github.com/dotnet/runtime
- https://lists.fedoraproject.org/archives/list/[email protected]/message/CL2L4WE5QRT7WEXANYXSKSU43APC5N2V
- https://lists.fedoraproject.org/archives/list/[email protected]/message/NWVZFKTLNMNKPZ755EMRYIA6GHFOWGKY
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-38180
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Sources
- CVE-2023-38180 · CVE Program
- CVE-2023-38180 · NVD
- CISA Known Exploited Vulnerabilities
- FIRST EPSS
- GHSA-vmch-3w2x-vhgq · GitHub Advisory Database · CC BY 4.0
- CVE-2023-38180 · Microsoft Security Update Guide
- CVE-2023-38180 · Red Hat security data · CC BY 4.0
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