CVE-2026-118147
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Improper Certificate Validation in Visual Studio

Publication date: 2026-10-31

Last updated on: 2026-10-31

Assigner: Microsoft Corporation

Description
Improper certificate validation in Visual Studio allows an unauthorized attacker to perform spoofing over a network.

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Meta Information

Published
2026-10-31
Last Modified
2026-10-31
Generated
2026-10-31
AI Q&A
2026-10-31
EPSS Evaluated
N/A
NVD
CVE-2026-118147
EUVD
EUVD-2026-114732

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-295 The product does not validate, or incorrectly validates, a certificate.

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Executive Summary

This vulnerability involves improper certificate validation in Microsoft Visual Studio. An unauthorized attacker can exploit this to perform spoofing attacks over a network, potentially impersonating legitimate services or users.

Impact Analysis

An attacker could intercept or manipulate communications between your system and Visual Studio, leading to unauthorized access, data theft, or execution of malicious code. This could affect confidentiality and integrity of data.

Compliance Impact

This vulnerability could lead to breaches of confidentiality and integrity, violating GDPR's data protection principles and HIPAA's security requirements. Organizations may face compliance penalties if exploited.

Mitigation Strategies

Apply the latest security update from Microsoft for Visual Studio versions 2017, 2019, 2022, or 2026 as soon as possible to address improper certificate validation.

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