CVE-2026-96232: .NET Information Disclosure Vulnerability

Overview

Severity

High (CVSS 7.5)

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/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-Oct

Released

2026-10-13

Description

Out-of-bounds read in .NET allows an unauthorized attacker to disclose information over a network.

FAQ

What type of information could be disclosed by this vulnerability? The type of information that could be disclosed if an attacker successfully exploited this vulnerability is internal memory pointers. These leaked addresses could help an attacker bypass security protection and facilitate further exploitation.

Affected Products (6)

Developer Tools

• Microsoft Visual Studio 2026 version 18.10
• .NET 10.0 installed on Windows
• .NET 8.0 installed on Windows
• .NET 9.0 installed on Windows
• Microsoft Visual Studio 2022 version 17.14
• .NET 11.0 installed on Windows

Security Updates (4)

• 5130036
• 5130034
• 5130035
• Release Notes

Acknowledgments

<a href="https://x.com/ky0tofu">Ky0toFu</a>, <a href="https://x.com/m4x_1997">Aobo Wang</a>, <a href="https://x.com/m4x_1997">Aobo Wang</a>, Raffaello Tamagnini

Revision History

• 2026-10-13: Information published.