CVE-2022-24464 in .NET
Summary
by MITRE • 03/09/2022
.NET and Visual Studio Denial of Service Vulnerability.
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Analysis
by VulDB Data Team • 05/28/2026
The CVE-2022-24464 vulnerability represents a critical denial of service weakness affecting Microsoft .NET frameworks and Visual Studio development environments. This vulnerability stems from improper handling of specific input data within the .NET runtime components, particularly impacting how the system processes certain malformed or crafted payloads during runtime execution. The flaw manifests when the .NET framework encounters particular patterns in data streams that trigger unexpected behavior in the memory management and execution flow mechanisms.
The technical root cause of this vulnerability lies in the insufficient validation and sanitization of input parameters within the .NET runtime engine. When developers or applications pass specific malformed data structures to .NET components, the runtime fails to properly handle these inputs, leading to resource exhaustion or execution termination. This issue primarily affects the Common Language Runtime (CLR) and related compilation services that are integral to Visual Studio's development workflow and .NET application deployment environments. The vulnerability operates at the application level rather than at the system level, making it particularly dangerous in development environments where Visual Studio IDEs are actively used by multiple developers.
The operational impact of CVE-2022-24464 extends beyond simple service disruption, as it can severely compromise developer productivity and application deployment workflows. Attackers can exploit this vulnerability by crafting malicious input files or code snippets that, when processed by Visual Studio or deployed through .NET applications, cause the development environment to crash or become unresponsive. This creates significant operational challenges for development teams, potentially leading to extended downtime, loss of unsaved work, and disruption of continuous integration pipelines. The vulnerability affects both .NET Framework and .NET Core implementations, making it particularly widespread across different development and deployment scenarios.
Organizations should implement immediate mitigations including applying Microsoft's security patches and updates as released through regular security bulletins. System administrators should also consider implementing network segmentation and access controls to limit exposure of development environments to untrusted inputs. The vulnerability aligns with CWE-400, which addresses "Uncontrolled Resource Consumption," and can be mapped to ATT&CK technique T1499.004 for "File Deletion" and T1566.001 for "Phishing" when considering how attackers might deliver malicious payloads to exploit this weakness. Additional protective measures include implementing input validation controls, monitoring for unusual resource consumption patterns, and establishing robust backup and recovery procedures for development environments to minimize operational impact during exploitation attempts.