CVE-2026-62902
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.NET Framework Information Disclosure Vulnerability

Vulnerability report for CVE-2026-62902, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-08-11

Last updated on: 2026-08-14

Assigner: Microsoft Corporation

Description

Inclusion of functionality from untrusted control sphere in .NET allows an unauthorized attacker to disclose information over a network.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published
2026-08-11
Last Modified
2026-08-14
Generated
2026-09-01
AI Q&A
2026-08-11
EPSS Evaluated
2026-08-30
NVD
EUVD

Affected Vendors & Products

Showing 4 associated CPEs
Vendor Product Version / Range
microsoft visual_studio_2022 From 17.14.0 (inc) to 17.14.38 (exc)
microsoft visual_studio_2026 From 18.8.0 (inc) to 18.8.3 (exc)
microsoft .net From 8.0.0 (inc) to 8.0.30 (exc)
microsoft .net From 9.0.0 (inc) to 9.0.19 (exc)

Helpful Resources

Exploitability

CWE
CWE Icon
KEV
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CWE ID Description
CWE-918 The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.
CWE-829 The product imports, requires, or includes executable functionality (such as a library) from a source that is outside of the intended control sphere.
CWE-693 The product does not use or incorrectly uses a protection mechanism that provides sufficient defense against directed attacks against the product.

Attack-Flow Graph

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Executive Summary

This vulnerability involves .NET including functionality from an untrusted source, allowing an unauthorized attacker to access and disclose sensitive information over a network without needing special permissions.

Impact Analysis

An attacker could exploit this to steal confidential data, such as user credentials or sensitive files, potentially leading to further attacks like identity theft or unauthorized system access.

Compliance Impact

This vulnerability could lead to unauthorized data disclosure, violating GDPR's data protection requirements and HIPAA's safeguards for protected health information, potentially resulting in legal penalties and reputational damage.

Mitigation Strategies

Apply the latest security updates from Microsoft for .NET as soon as they become available to patch this vulnerability.

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EPSS Chart