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TI-2026-24711 Aliases CVE-2026-32175GHSA-rg75-q538-x34v

.NET Core Tampering Vulnerability

Priority LOW 21CWE-36Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Tampering
Confidentiality · integrity · availability
None · Low · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA, GitHub and Microsoft. Impact type from Microsoft.

Summary

A tampering vulnerability exists when .NET Core improperly handles specially crafted files. An attacker who successfully exploited this vulnerability could write arbitrary files and directories to certain locations on a vulnerable system. However, an attacker would have limited control over the destination of the files and directories. To exploit the vulnerability, an attacker must send a specially crafted file to a vulnerable system. The security update fixes the vulnerability by ensuring .NET Core properly handles files.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00711 53rd percentileScored 2026-11-07
Fix Fixed Microsoft.NetCore.App.Runtime.win-arm (NuGet): 8.0.27, 9.0.16, 10.0.8Microsoft.NetCore.App.Runtime.win-arm64 (NuGet): 8.0.27, 9.0.16, 10.0.8+2 more productsMicrosoft: 3 updates

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
Microsoft.NET 10.010.0.0 to before 10.0.810.0.8Patch availableCNA
Microsoft.NET 8.08.0.0 to before 8.0.278.0.27Patch availableCNA
Microsoft.NET 9.09.0.0 to before 9.0.169.0.16Patch availableCNA
MicrosoftMicrosoft Visual Studio 2022 version 17.1217.12.0 to before 17.12.2017.12.20Patch availableCNA
MicrosoftMicrosoft Visual Studio 2022 version 17.1417.14.0 to before 17.14.3217.14.32Patch availableCNA
MicrosoftMicrosoft Visual Studio 2026 version 18.518.5.0 to before 18.5.318.5.3Patch availableCNA
—Microsoft.NetCore.App.Runtime.win-arm (NuGet)8.0.0 to before 8.0.278.0.27Patch availableGHSA-rg75-q538-x34v
—Microsoft.NetCore.App.Runtime.win-arm (NuGet)9.0.0 to before 9.0.169.0.16Patch availableGHSA-rg75-q538-x34v
—Microsoft.NetCore.App.Runtime.win-arm (NuGet)10.0.0 to before 10.0.810.0.8Patch availableGHSA-rg75-q538-x34v
—Microsoft.NetCore.App.Runtime.win-arm64 (NuGet)8.0.0 to before 8.0.278.0.27Patch availableGHSA-rg75-q538-x34v
—Microsoft.NetCore.App.Runtime.win-arm64 (NuGet)9.0.0 to before 9.0.169.0.16Patch availableGHSA-rg75-q538-x34v
—Microsoft.NetCore.App.Runtime.win-arm64 (NuGet)10.0.0 to before 10.0.810.0.8Patch availableGHSA-rg75-q538-x34v
—Microsoft.NetCore.App.Runtime.win-x64 (NuGet)8.0.0 to before 8.0.278.0.27Patch availableGHSA-rg75-q538-x34v
—Microsoft.NetCore.App.Runtime.win-x64 (NuGet)9.0.0 to before 9.0.169.0.16Patch availableGHSA-rg75-q538-x34v
—Microsoft.NetCore.App.Runtime.win-x64 (NuGet)10.0.0 to before 10.0.810.0.8Patch availableGHSA-rg75-q538-x34v
—Microsoft.NetCore.App.Runtime.win-x86 (NuGet)8.0.0 to before 8.0.278.0.27Patch availableGHSA-rg75-q538-x34v
—Microsoft.NetCore.App.Runtime.win-x86 (NuGet)9.0.0 to before 9.0.169.0.16Patch availableGHSA-rg75-q538-x34v
—Microsoft.NetCore.App.Runtime.win-x86 (NuGet)10.0.0 to before 10.0.810.0.8Patch availableGHSA-rg75-q538-x34v
  • .NET 10.0 VendorMicrosoft Affected 10.0.0 to before 10.0.8 Fixed in 10.0.8 Patch available CNA
  • .NET 8.0 VendorMicrosoft Affected 8.0.0 to before 8.0.27 Fixed in 8.0.27 Patch available CNA
  • .NET 9.0 VendorMicrosoft Affected 9.0.0 to before 9.0.16 Fixed in 9.0.16 Patch available CNA
  • Microsoft Visual Studio 2022 version 17.12 VendorMicrosoft Affected 17.12.0 to before 17.12.20 Fixed in 17.12.20 Patch available CNA
  • Microsoft Visual Studio 2022 version 17.14 VendorMicrosoft Affected 17.14.0 to before 17.14.32 Fixed in 17.14.32 Patch available CNA
  • Microsoft Visual Studio 2026 version 18.5 VendorMicrosoft Affected 18.5.0 to before 18.5.3 Fixed in 18.5.3 Patch available CNA
  • Microsoft.NetCore.App.Runtime.win-arm (NuGet) Vendor— Affected 8.0.0 to before 8.0.27 Fixed in 8.0.27 Patch available GHSA-rg75-q538-x34v
  • Microsoft.NetCore.App.Runtime.win-arm (NuGet) Vendor— Affected 9.0.0 to before 9.0.16 Fixed in 9.0.16 Patch available GHSA-rg75-q538-x34v
  • Microsoft.NetCore.App.Runtime.win-arm (NuGet) Vendor— Affected 10.0.0 to before 10.0.8 Fixed in 10.0.8 Patch available GHSA-rg75-q538-x34v
  • Microsoft.NetCore.App.Runtime.win-arm64 (NuGet) Vendor— Affected 8.0.0 to before 8.0.27 Fixed in 8.0.27 Patch available GHSA-rg75-q538-x34v
  • Microsoft.NetCore.App.Runtime.win-arm64 (NuGet) Vendor— Affected 9.0.0 to before 9.0.16 Fixed in 9.0.16 Patch available GHSA-rg75-q538-x34v
  • Microsoft.NetCore.App.Runtime.win-arm64 (NuGet) Vendor— Affected 10.0.0 to before 10.0.8 Fixed in 10.0.8 Patch available GHSA-rg75-q538-x34v
  • Microsoft.NetCore.App.Runtime.win-x64 (NuGet) Vendor— Affected 8.0.0 to before 8.0.27 Fixed in 8.0.27 Patch available GHSA-rg75-q538-x34v
  • Microsoft.NetCore.App.Runtime.win-x64 (NuGet) Vendor— Affected 9.0.0 to before 9.0.16 Fixed in 9.0.16 Patch available GHSA-rg75-q538-x34v
  • Microsoft.NetCore.App.Runtime.win-x64 (NuGet) Vendor— Affected 10.0.0 to before 10.0.8 Fixed in 10.0.8 Patch available GHSA-rg75-q538-x34v
  • Microsoft.NetCore.App.Runtime.win-x86 (NuGet) Vendor— Affected 8.0.0 to before 8.0.27 Fixed in 8.0.27 Patch available GHSA-rg75-q538-x34v
  • Microsoft.NetCore.App.Runtime.win-x86 (NuGet) Vendor— Affected 9.0.0 to before 9.0.16 Fixed in 9.0.16 Patch available GHSA-rg75-q538-x34v
  • Microsoft.NetCore.App.Runtime.win-x86 (NuGet) Vendor— Affected 10.0.0 to before 10.0.8 Fixed in 10.0.8 Patch available GHSA-rg75-q538-x34v

CPE configurations NVD · 4

CPEVersionsRoleVendor
cpe:2.3:a:microsoft:visual_studio_2022:*:*:*:*:*:*:*:*17.12.0 to before 17.12.20; 17.14.0 to before 17.14.32VulnerableMicrosoft
cpe:2.3:a:microsoft:visual_studio_2026:*:*:*:*:*:*:*:*18.5.0 to before 18.5.3VulnerableMicrosoft
cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*8.0.0 to before 8.0.27; 9.0.0 to before 9.0.16VulnerableMicrosoft
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*not specified by NVDRunning onMicrosoft
  • cpe:2.3:a:microsoft:visual_studio_2022:*:*:*:*:*:*:*:* Versions 17.12.0 to before 17.12.20; 17.14.0 to before 17.14.32 Vulnerable ·Microsoft
  • cpe:2.3:a:microsoft:visual_studio_2026:*:*:*:*:*:*:*:* Versions 18.5.0 to before 18.5.3 Vulnerable ·Microsoft
  • cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:* Versions 8.0.0 to before 8.0.27; 9.0.0 to before 9.0.16 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microsoft

Remediation

  • Fix · GHSA-rg75-q538-x34v Microsoft.NetCore.App.Runtime.win-arm (NuGet) Fixed in 8.0.27 Advisory →
  • Fix · GHSA-rg75-q538-x34v Microsoft.NetCore.App.Runtime.win-arm (NuGet) Fixed in 9.0.16 Advisory →
  • Fix · GHSA-rg75-q538-x34v Microsoft.NetCore.App.Runtime.win-arm (NuGet) Fixed in 10.0.8 Advisory →
  • Fix · GHSA-rg75-q538-x34v Microsoft.NetCore.App.Runtime.win-arm64 (NuGet) Fixed in 8.0.27 Advisory →
  • Fix · GHSA-rg75-q538-x34v Microsoft.NetCore.App.Runtime.win-arm64 (NuGet) Fixed in 9.0.16 Advisory →
  • Fix · GHSA-rg75-q538-x34v Microsoft.NetCore.App.Runtime.win-arm64 (NuGet) Fixed in 10.0.8 Advisory →
  • Fix · GHSA-rg75-q538-x34v Microsoft.NetCore.App.Runtime.win-x64 (NuGet) Fixed in 8.0.27 Advisory →
  • Fix · GHSA-rg75-q538-x34v Microsoft.NetCore.App.Runtime.win-x64 (NuGet) Fixed in 9.0.16 Advisory →
  • Fix · GHSA-rg75-q538-x34v Microsoft.NetCore.App.Runtime.win-x64 (NuGet) Fixed in 10.0.8 Advisory →
  • Fix · GHSA-rg75-q538-x34v Microsoft.NetCore.App.Runtime.win-x86 (NuGet) Fixed in 8.0.27 Advisory →
  • Fix · GHSA-rg75-q538-x34v Microsoft.NetCore.App.Runtime.win-x86 (NuGet) Fixed in 9.0.16 Advisory →
  • Fix · GHSA-rg75-q538-x34v Microsoft.NetCore.App.Runtime.win-x86 (NuGet) Fixed in 10.0.8 Advisory →

Microsoft 3 updates

  • KB5093448
    Security Update
    • .NET 9.0 installed on Linux 9.0.16
    • .NET 9.0 installed on Mac OS 9.0.16
    • .NET 9.0 installed on Windows 9.0.16
  • KB5093447
    Security Update
    • .NET 8.0 installed on Linux 8.0.27
    • .NET 8.0 installed on Mac OS 8.0.27
    • .NET 8.0 installed on Windows 8.0.27
  • KB5093446
    Security Update
    • .NET 10.0 installed on Linux 10.0.8
    • .NET 10.0 installed on Mac OS 10.0.8
    • .NET 10.0 installed on Windows 10.0.8

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

Not affected: 4 products
  • Red Hat Enterprise Linux 10
  • Red Hat Enterprise Linux 8
  • Red Hat Enterprise Linux 9
  • Red Hat Hardened Images

Microsoft

Microsoft's page for this CVE →

Impact
Tampering
Exploited
No
Publicly disclosed
No
Exploitability
Exploitation Less Likely
ProductStatusPlan or fix
Microsoft Visual Studio 2022 version 17.12Fixed 17.12.20 · Security Update
Microsoft Visual Studio 2022 version 17.14Fixed 17.14.32 · Security Update
Microsoft Visual Studio 2026 version 18.5Fixed 18.5.3 · Security Update

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-32175
  2. 2026-10-03 Alias added: GHSA-rg75-q538-x34v
  3. 2026-10-25 EPSS moved to the 50th–90th percentile

References

Patch 1

Advisory 1

Other 3

  • TI-2026-79288 Out-of-bounds write in Google Brotli decoder KEVCVSS 4.0CRITICAL 9.2
  • 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-2023-19588 Microsoft QUIC Denial of Service Vulnerability CVSS 3.1HIGH 7.5
  • TI-2024-14152 .NET and Visual Studio Denial of Service Vulnerability CVSS 3.1HIGH 7.5
  • TI-2021-08380 .NET Core Remote Code Execution Vulnerability CVSS 3.1CRITICAL 9.8
See all 129 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences