CVE-2026-109478: ASP.NET Core Denial of Service Vulnerability
Microsoft · .NET 8.0 installed on Linux
Vendor fix available · Affected: Microsoft .NET 8.0 installed on Linux · Exploitation: possible (1 to 10%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 69% of scored CVEs
DescriptionCVE.org
Inefficient algorithmic complexity in ASP.NET Core allows an unauthorized attacker to deny service over a network.
Affected products9
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- Microsoft · .NET 8.0 installed on Linuxfrom 8.0.0 before 8.0.34
- Microsoft · .NET 8.0 installed on Mac OSfrom 8.0.0 before 8.0.34
- Microsoft · .NET 8.0 installed on Windowsfrom 8.0.0 before 8.0.34
- Microsoft · .NET 9.0 installed on Linuxfrom 9.0.0 before 9.0.0-preview.4.24266.19
- Microsoft · .NET 9.0 installed on Mac OSfrom 9.0.0 before 9.0.0-preview.4.24266.19
- Microsoft · .NET 9.0 installed on Windowsfrom 9.0.0 before 9.0.0-preview.4.24266.19
- Microsoft · Microsoft Visual Studio 2022 version 17.14from 17.14.0 before 17.14.45
- Microsoft · Microsoft Visual Studio 2026 version 18.11from 18.11.0 before 18.11.4
- Microsoft · Microsoft Visual Studio 2026 version 18.12from 18.12.0 before 18.12.0
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Possible (1 to 10%). EPSS between 1% and 10%.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Vendor
- Microsoft
- Published
- November 2026
CoverageNo articles yet
No CyberSIXT article names CVE-2026-109478 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.