CVE-2026-109478

HighCVSS 7.5/10Last modified Nov 11, 2026

Description

Inefficient algorithmic complexity in ASP.NET Core allows an unauthorized attacker to deny service over a network.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-407

Affected software

Source: the vendor's advisory (CNA). NVD analysis pending.

VendorProductVersions
Microsoft.NET 8.0 installed on Linux>= 8.0.0, < 8.0.34
Microsoft.NET 8.0 installed on Mac OS>= 8.0.0, < 8.0.34
Microsoft.NET 8.0 installed on Windows>= 8.0.0, < 8.0.34
Microsoft.NET 9.0 installed on Linux>= 9.0.0, < 9.0.0-preview.4.24266.19
Microsoft.NET 9.0 installed on Mac OS>= 9.0.0, < 9.0.0-preview.4.24266.19
Microsoft.NET 9.0 installed on Windows>= 9.0.0, < 9.0.0-preview.4.24266.19
MicrosoftMicrosoft Visual Studio 2022 version 17.14>= 17.14.0, < 17.14.45
MicrosoftMicrosoft Visual Studio 2026 version 18.11>= 18.11.0, < 18.11.4
MicrosoftMicrosoft Visual Studio 2026 version 18.12>= 18.12.0, < 18.12.0

References

Timeline

Published
Nov 10, 2026
Last modified
Nov 11, 2026
NVD status
Awaiting Analysis

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CVE-2026-109478: High severity, CVSS 7.5 | Vulnix