This page lists publicly disclosed CVE vulnerabilities affecting microsoft asp.net_core (linked via NVD CPE). Each row includes severity scores, summaries, and publication dates to help identify and analyze security issues.
| CVE | Summary | Source | Max CVSS | EPSS % | Published | Updated |
|---|---|---|---|---|---|---|
| CVE-2026-45591 | Uncontrolled resource consumption in ASP.NET Core allows an unauthorized attacker to deny service over a network. | [email protected] | 7.5 | 0.75% | 2026-06-09 | 2026-06-19 |
| CVE-2026-40372 | Improper verification of cryptographic signature in ASP.NET Core allows an unauthorized attacker to elevate privileges over a network. | [email protected] | 9.1 | 10.35% | 2026-04-21 | 2026-04-27 |
| CVE-2026-26130 | Allocation of resources without limits or throttling in ASP.NET Core allows an unauthorized attacker to deny service over a network. | [email protected] | 7.5 | 1.37% | 2026-03-10 | 2026-04-02 |
| CVE-2025-55315 | Inconsistent interpretation of http requests ('http request/response smuggling') in ASP.NET Core allows an authorized attacker to bypass a security feature over a network. | [email protected] | 9.9 | 66.26% | 2025-10-14 | 2025-10-28 |
| CVE-2025-26682 | Allocation of resources without limits or throttling in ASP.NET Core allows an unauthorized attacker to deny service over a network. | [email protected] | 7.5 | 1.27% | 2025-04-08 | 2025-07-09 |
| CVE-2025-24070 | Weak authentication in ASP.NET Core & Visual Studio allows an unauthorized attacker to elevate privileges over a network. | [email protected] | 7.0 | 0.91% | 2025-03-11 | 2025-07-02 |
| CVE-2024-21404 | .NET Denial of Service Vulnerability | [email protected] | 7.5 | 2.71% | 2024-02-13 | 2024-11-21 |
| CVE-2024-21386 | .NET Denial of Service Vulnerability | [email protected] | 7.5 | 2.39% | 2024-02-13 | 2024-11-21 |
| CVE-2023-36558 | ASP.NET Core Security Feature Bypass Vulnerability | [email protected] | 6.2 | 1.08% | 2023-11-14 | 2025-01-01 |
| CVE-2023-36038 | ASP.NET Core Denial of Service Vulnerability | [email protected] | 8.2 | 2.78% | 2023-11-14 | 2024-11-21 |
| CVE-2023-44487 KEV | The HTTP/2 protocol allows a denial of service (server resource consumption) because request cancellation can reset many streams quickly, as exploited in the wild in August through October 2023. | [email protected] | 7.5 | 100.00% | 2023-10-10 | 2026-05-12 |
| CVE-2023-38180 KEV | .NET and Visual Studio Denial of Service Vulnerability | [email protected] | 7.5 | 15.52% | 2023-08-08 | 2025-10-28 |
| CVE-2023-35391 | ASP.NET Core SignalR and Visual Studio Information Disclosure Vulnerability | [email protected] | 6.2 | 1.94% | 2023-08-08 | 2024-11-21 |
| CVE-2021-43877 | ASP.NET Core and Visual Studio Elevation of Privilege Vulnerability | [email protected] | 8.8 | 0.68% | 2021-12-15 | 2024-11-21 |
| CVE-2021-34532 | ASP.NET Core and Visual Studio Information Disclosure Vulnerability | [email protected] | 5.5 | 1.12% | 2021-08-12 | 2024-11-21 |
| CVE-2021-1723 | ASP.NET Core and Visual Studio Denial of Service Vulnerability | [email protected] | 7.5 | 4.91% | 2021-01-12 | 2024-11-21 |
| CVE-2020-1045 | <p>A security feature bypass vulnerability exists in the way Microsoft ASP.NET Core parses encoded cookie names.</p> <p>The ASP.NET Core cookie parser decodes entire cookie strings which could allow a malicious attacker to set a second cookie with the name being percent encoded.</p> <p>The security update addresses the vulnerability by fixing the way the ASP.NET Core cookie parser handles encoded names.</p> | [email protected] | 7.5 | 6.62% | 2020-09-11 | 2026-02-23 |
| CVE-2020-1597 | A denial of service vulnerability exists when ASP.NET Core improperly handles web requests. An attacker who successfully exploited this vulnerability could cause a denial of service against an ASP.NET Core web application. The vulnerability can be exploited remotely, without authentication. A remote unauthenticated attacker could exploit this vulnerability by issuing specially crafted requests to the ASP.NET Core application. The update addresses the vulnerability by correcting how the ASP.NET C | [email protected] | 7.5 | 6.56% | 2020-08-17 | 2026-02-23 |
| CVE-2020-1161 | A denial of service vulnerability exists when ASP.NET Core improperly handles web requests, aka 'ASP.NET Core Denial of Service Vulnerability'. | [email protected] | 7.5 | 5.70% | 2020-05-21 | 2024-11-21 |
| CVE-2020-0603 | A remote code execution vulnerability exists in ASP.NET Core software when the software fails to handle objects in memory.An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the current user, aka 'ASP.NET Core Remote Code Execution Vulnerability'. | [email protected] | 8.8 | 19.98% | 2020-01-14 | 2024-11-21 |