CVSS 3.1
8.8 highCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HCVE-2026-118745 Visual Studio Remote Code Execution Vulnerability
High (8.8) in microsoft. EPSS 0.9% estimated probability of exploitation activity in the next 30 days. Fixed in Microsoft.NETCore.App.Runtime.win-x86 10.0.15, 11.0.0, 8.0.34.
On this page
Heap-based buffer overflow in Visual Studio allows an unauthorized attacker to execute code over a network.
Severity
- EPSS
- 0.9% estimated probability of exploitation activity in the next 30 days; 62nd 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-122 Heap-based Buffer Overflow
- Published
- Modified
- Assigned by
- microsoft (CNA)
- NVD analysis
- Awaiting analysis
- Record from
- the NVD, synced
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Affected
- microsoft:.net 10.0 installed on windows
- microsoft:.net 11.0 installed on windows
- microsoft:.net 8.0 installed on windows
- microsoft:.net 9.0 installed on windows
- microsoft:microsoft visual studio 2026 version 18.11
- microsoft:microsoft visual studio 2026 version 18.12
Versions
From the CNA's record in the CVE List.
| Product | Affected |
|---|---|
| Microsoft .NET 10.0 installed on Windows | from 10.0.0 before 10.0.15 |
| Microsoft .NET 11.0 installed on Windows | from 11.0.0-preview.1 before 11.0.0 |
| Microsoft .NET 8.0 installed on Windows | from 8.0.0 before 8.0.34 |
| Microsoft .NET 9.0 installed on Windows | from 9.0.0 before 9.0.23 |
| Microsoft Visual Studio 2026 version 18.11 | from 18.11.0 before 18.11.4 |
| Microsoft Visual Studio 2026 version 18.12 | from 18.12.0 before 18.12.0 |
Fix and patched versions
Microsoft.NETCore.App.Runtime.win-x86(NuGet): fixed in 8.0.34, 9.0.23, 10.0.15, 11.0.0Microsoft.NETCore.App.Runtime.win-x64(NuGet): fixed in 8.0.34, 9.0.23, 10.0.15, 11.0.0Microsoft.NETCore.App.Runtime.win-arm64(NuGet): fixed in 8.0.34, 9.0.23, 10.0.15, 11.0.0- Alpine: fixed package versions per release
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-x8x8-p968-x646 | NuGet | Microsoft.NETCore.App.Runtime.win-x86 | >=8.0.0 <8.0.34 | 8.0.34 |
| GHSA-x8x8-p968-x646 | NuGet | Microsoft.NETCore.App.Runtime.win-x64 | >=8.0.0 <8.0.34 | 8.0.34 |
| GHSA-x8x8-p968-x646 | NuGet | Microsoft.NETCore.App.Runtime.win-arm64 | >=8.0.0 <8.0.34 | 8.0.34 |
| GHSA-x8x8-p968-x646 | NuGet | Microsoft.NETCore.App.Runtime.win-x86 | >=9.0.0 <9.0.23 | 9.0.23 |
| GHSA-x8x8-p968-x646 | NuGet | Microsoft.NETCore.App.Runtime.win-x64 | >=9.0.0 <9.0.23 | 9.0.23 |
| GHSA-x8x8-p968-x646 | NuGet | Microsoft.NETCore.App.Runtime.win-arm64 | >=9.0.0 <9.0.23 | 9.0.23 |
| GHSA-x8x8-p968-x646 | NuGet | Microsoft.NETCore.App.Runtime.win-x86 | >=10.0.0 <10.0.15 | 10.0.15 |
| GHSA-x8x8-p968-x646 | NuGet | Microsoft.NETCore.App.Runtime.win-x64 | >=10.0.0 <10.0.15 | 10.0.15 |
| GHSA-x8x8-p968-x646 | NuGet | Microsoft.NETCore.App.Runtime.win-arm64 | >=10.0.0 <10.0.15 | 10.0.15 |
| GHSA-x8x8-p968-x646 | NuGet | Microsoft.NETCore.App.Runtime.win-x86 | >=11.0.0-preview.1 <11.0.0 | 11.0.0 |
| GHSA-x8x8-p968-x646 | NuGet | Microsoft.NETCore.App.Runtime.win-x64 | >=11.0.0-preview.1 <11.0.0 | 11.0.0 |
| GHSA-x8x8-p968-x646 | NuGet | Microsoft.NETCore.App.Runtime.win-arm64 | >=11.0.0-preview.1 <11.0.0 | 11.0.0 |
Linux distributions
| Distribution | Release | Package | Fixed in | Advisory |
|---|---|---|---|---|
| Ubuntu | 22.04:LTS | dotnet7 | no fix listed | UBUNTU-CVE-2026-118745 |
| Alpine | v3.22, v3.23, v3.24 | dotnet8-runtime | 8.0.34-r0 | ALPINE-CVE-2026-118745 |
| Alpine | v3.22, v3.23, v3.24 | dotnet9-runtime | 9.0.23-r0 | ALPINE-CVE-2026-118745 |
| Alpine | v3.24 | dotnet10-runtime | 10.0.15-r0 | ALPINE-CVE-2026-118745 |
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-92 Forced Integer Overflow Likelihood: High · Severity: High
The attack patterns MITRE's CAPEC relates to this record's weaknesses, as MITRE names them. Credits.