CVE-2025-26682: high-severity vulnerability in Microsoft ASP.NET Core 8.0
ASP.NET Core and Visual Studio Denial of Service Vulnerability
Published · Updated
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.5epss 1.7%
Allocation of resources without limits or throttling in ASP.NET Core allows an unauthorized attacker to deny service over a network.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C
Affected products
Microsoft · ASP.NET Core 8.0Microsoft · ASP.NET Core 9.0Microsoft · Microsoft Visual Studio 2022 version 17.10Microsoft · Microsoft Visual Studio 2022 version 17.12Microsoft · Microsoft Visual Studio 2022 version 17.13Microsoft · Microsoft Visual Studio 2022 version 17.8Related CVEs — Microsoft ASP.NET Core 8.0
In the same product, most dangerous first.
CVE-2025-55315CRITICALASP.NET Security Feature Bypass VulnerabilityEPSS 67.2%CVE-2025-47959HIGHVisual Studio Remote Code Execution VulnerabilityEPSS 10.9%CVE-2024-43498CRITICAL.NET and Visual Studio Remote Code Execution VulnerabilityEPSS 3.6%CVE-2026-26130HIGHASP.NET Core Denial of Service VulnerabilityEPSS 3.2%CVE-2024-43485HIGH.NET and Visual Studio Denial of Service VulnerabilityEPSS 3.1%CVE-2024-43484HIGH.NET, .NET Framework, and Visual Studio Denial of Service VulnerabilityEPSS 3.0%