CVE-2026-32203
Analyzed Analyzed - Analysis Complete
Stack-Based Buffer Overflow in .NET, Visual Studio Causes DoS

Publication date: 2026-04-14

Last updated on: 2026-05-06

Assigner: Microsoft Corporation

Description
Stack-based buffer overflow in .NET and Visual Studio allows an unauthorized attacker to deny service over a network.
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Meta Information
Published
2026-04-14
Last Modified
2026-05-06
Generated
2026-06-16
AI Q&A
2026-04-15
EPSS Evaluated
2026-06-15
NVD
CVE-2026-32203
EUVD
EUVD-2026-22591
Affected Vendors & Products
Showing 6 associated CPEs
Vendor Product Version / Range
microsoft .net From 10.0.0 (inc) to 10.0.6 (exc)
microsoft .net From 8.0.0 (inc) to 8.0.26 (exc)
microsoft .net From 9.0.0 (inc) to 9.0.15 (exc)
microsoft visual_studio_2022 From 17.12.0 (inc) to 17.12.19 (exc)
microsoft visual_studio_2022 From 17.14.0 (inc) to 17.14.30 (exc)
microsoft visual_studio_2026 From 18.4.0 (inc) to 18.4.4 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-20 The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
CWE-121 A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).
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Mitigation Strategies

To mitigate this vulnerability, apply the security updates provided by Microsoft for .NET and Visual Studio as soon as possible to prevent unauthorized denial of service attacks.

Compliance Impact

The vulnerability is a stack-based buffer overflow in .NET and Visual Studio that allows an unauthorized attacker to cause a denial of service over a network.

This vulnerability impacts availability but does not affect confidentiality or integrity of data.

Since the vulnerability does not lead to data breach or unauthorized data access, its direct impact on compliance with standards like GDPR or HIPAA, which focus heavily on data protection and privacy, is limited.

However, denial of service incidents can affect system availability requirements under these regulations, so organizations should consider this vulnerability in their risk assessments and mitigation strategies to maintain compliance.

Executive Summary

This vulnerability is a stack-based buffer overflow found in .NET and Visual Studio. It allows an unauthorized attacker to cause a denial of service over a network.

Impact Analysis

The vulnerability can impact you by enabling an attacker to deny service remotely, potentially causing your applications or services running on .NET or Visual Studio to become unavailable.

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