CVE-2026-62902: .NET Information Disclosure Vulnerability

Overview

Severity

Medium (CVSS 6.5)

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C

Category

Information Disclosure

Exploit Status

Not Exploited

Exploitation Likelihood

Less Likely

Patch Tuesday

2026-Aug

Released

2026-08-11

Last Updated

2026-08-13

EPSS Score

0.87% (percentile: 57.2%)

Description

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

FAQ

What type of information could be disclosed by this vulnerability? Exploiting this vulnerability could allow the disclosure of NTLM hashes.

Affected Products (4)

Developer Tools

• .NET 8.0 installed on Windows
• .NET 9.0 installed on Windows
• Microsoft Visual Studio 2022 version 17.14
• Microsoft Visual Studio 2026 version 18.8

Security Updates (2)

• 5122104
• 5122105

Acknowledgments

<a href="https://x.com/ky0tofu">Ky0toFu</a>

Revision History

• 2026-08-11: Information published.
• 2026-08-13: Removed Linux and macOS products from the Affected Software table. This is an informational change only.