Name: Microsoft .NET: CVE-2026-66822: .NET Information Disclosure Vulnerability
Creator: Rapid7
Published: 2026-10-13T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2026-66822, CWE-201, CVSS 5.9, EPSS 0.00674

Insertion of sensitive information into sent data in .NET allows an unauthorized attacker to disclose information over a network.

CVSS Details

CVSS 3.1 Base Score: 5.9
CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Microsoft Dot_net	—	Upgrade .NET Runtime 8.0 to laterUpgrade .NET Runtime 10.0 to laterUpgrade .NET Runtime 9.0 to later	Oct 13, 2026	Oct 13, 2026
Microsoft Visual_studio	—	Update Microsoft Visual Studio 2022 to the latest version in the current channel channel.Update Microsoft Visual Studio 2026 to the latest version in the current channel channel.	Oct 13, 2026	Oct 13, 2026

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CVSS Details

Covered by Rapid7

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