Microsoft Asp.Net Core vulnerabilities

CVE-2026-26130 [HIGH] CWE-770 CVE-2026-26130: Allocation of resources without limits or throttling in ASP.NET Core allows an unauthorized attacker Allocation of resources without limits or throttling in ASP.NET Core allows an unauthorized attacker to deny service over a network.

CVE-2025-55315 [CRITICAL] CWE-444 CVE-2025-55315: Inconsistent interpretation of http requests ('http request/response smuggling') in ASP.NET Core all 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.

CVE-2025-26682 [HIGH] CWE-770 CVE-2025-26682: Allocation of resources without limits or throttling in ASP.NET Core allows an unauthorized attacker Allocation of resources without limits or throttling in ASP.NET Core allows an unauthorized attacker to deny service over a network.

CVE-2025-24070 [HIGH] CWE-1390 CVE-2025-24070: Weak authentication in ASP.NET Core & Visual Studio allows an unauthorized attacker to elevate p Weak authentication in ASP.NET Core & Visual Studio allows an unauthorized attacker to elevate privileges over a network.

CVE-2023-36558 [MEDIUM] CVE-2023-36558: ASP.NET Core Security Feature Bypass Vulnerability ASP.NET Core Security Feature Bypass Vulnerability

CVE-2023-44487 [HIGH] CWE-400 CVE-2023-44487: The HTTP/2 protocol allows a denial of service (server resource consumption) because request cancell 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.

CVE-2023-38180 [HIGH] CWE-400 CVE-2023-38180: .NET and Visual Studio Denial of Service Vulnerability .NET and Visual Studio Denial of Service Vulnerability

CVE-2023-35391 [MEDIUM] CVE-2023-35391: ASP.NET Core SignalR and Visual Studio Information Disclosure Vulnerability ASP.NET Core SignalR and Visual Studio Information Disclosure Vulnerability

CVE-2021-43877 [HIGH] CVE-2021-43877: ASP.NET Core and Visual Studio Elevation of Privilege Vulnerability ASP.NET Core and Visual Studio Elevation of Privilege Vulnerability

CVE-2021-34532 [MEDIUM] CVE-2021-34532: ASP.NET Core and Visual Studio Information Disclosure Vulnerability ASP.NET Core and Visual Studio Information Disclosure Vulnerability

CVE-2021-1723 [HIGH] CVE-2021-1723: ASP.NET Core and Visual Studio Denial of Service Vulnerability ASP.NET Core and Visual Studio Denial of Service Vulnerability

CVE-2020-1045 [HIGH] CVE-2020-1045: <p>A security feature bypass vulnerability exists in the way Microsoft ASP.NET Core parses encoded c A security feature bypass vulnerability exists in the way Microsoft ASP.NET Core parses encoded cookie names. 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. The security update addresses the vulnerability by fixing the way the ASP.NET Core cookie par

CVE-2020-1597 [HIGH] CVE-2020-1597: A denial of service vulnerability exists when ASP.NET Core improperly handles web requests. An attac 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 i

CVE-2020-1161 [HIGH] CVE-2020-1161: A denial of service vulnerability exists when ASP.NET Core improperly handles web requests, aka 'ASP A denial of service vulnerability exists when ASP.NET Core improperly handles web requests, aka 'ASP.NET Core Denial of Service Vulnerability'.

CVE-2020-0602 [HIGH] CVE-2020-0602: A denial of service vulnerability exists when ASP.NET Core improperly handles web requests, aka 'ASP A denial of service vulnerability exists when ASP.NET Core improperly handles web requests, aka 'ASP.NET Core Denial of Service Vulnerability'.

CVE-2020-0603 [HIGH] CWE-787 CVE-2020-0603: A remote code execution vulnerability exists in ASP.NET Core software when the software fails to han 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'.

CVE-2019-1302 [HIGH] CWE-20 CVE-2019-1302: An elevation of privilege vulnerability exists when a ASP.NET Core web application, created using vu An elevation of privilege vulnerability exists when a ASP.NET Core web application, created using vulnerable project templates, fails to properly sanitize web requests, aka 'ASP.NET Core Elevation Of Privilege Vulnerability'.

CVE-2019-1075 [MEDIUM] CWE-601 CVE-2019-1075: A spoofing vulnerability exists in ASP.NET Core that could lead to an open redirect, aka 'ASP.NET Co A spoofing vulnerability exists in ASP.NET Core that could lead to an open redirect, aka 'ASP.NET Core Spoofing Vulnerability'.

CVE-2019-0982 [HIGH] CWE-19 CVE-2019-0982: A denial of service vulnerability exists when ASP.NET Core improperly handles web requests, aka 'ASP A denial of service vulnerability exists when ASP.NET Core improperly handles web requests, aka 'ASP.NET Core Denial of Service Vulnerability'.

CVE-2019-0815 [HIGH] CWE-19 CVE-2019-0815: A denial of service vulnerability exists when ASP.NET Core improperly handles web requests, aka 'ASP A denial of service vulnerability exists when ASP.NET Core improperly handles web requests, aka 'ASP.NET Core Denial of Service Vulnerability'.