CVE-2026-69806: CWE-200: Exposure of Sensitive Information to an Unauthorized Actor in Microsoft .NET 10.0
Description
CVE-2026-69806 is a high-severity vulnerability in Microsoft .NET 10.0 that allows exposure of sensitive information to unauthorized actors. This flaw enables an authorized local attacker to elevate privileges. The vulnerability affects multiple versions of .NET including 9.0.x, 10.0.x, 11.0.0, 17.14.x, and 18.9.x. An official fix is available from Microsoft.
CVSS v3.1
Score 7.0high
Affected software
Microsoft
.NET 10.0
Microsoft
.NET 11.0
Microsoft
.NET 9.0
Microsoft
Microsoft Visual Studio 2022 version 17.14
Microsoft
Microsoft Visual Studio 2026 version 18.9
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-69806 is a vulnerability classified under CWE-200 (Exposure of Sensitive Information) affecting Microsoft .NET versions 9.0.0 through before 9.0.20, 10.0.0 through before 10.0.12, exactly 10.0.0, 11.0.0, 17.14.0 through before 17.14.40, and 18.9.0 through before 18.9.3. It allows an authorized local attacker to gain elevated privileges by exploiting sensitive information exposure. The CVSS v3.1 base score is 7.0 (high), with attack vector local, high attack complexity, low privileges required, no user interaction, and impacts confidentiality, integrity, and availability. Microsoft has issued an official fix for this vulnerability.
Potential Impact
An authorized local attacker can exploit this vulnerability to expose sensitive information and elevate their privileges on affected systems. This can lead to full compromise of confidentiality, integrity, and availability of the affected .NET environment.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security updates provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69806 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-08-03T22:47:19.710Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69806","vendor":"Microsoft"}]
Threat ID: 6aa0452dacd9273b49fa9990
Added to database: 09/08/2026, 17:26:05 UTC
Last enriched: 10/16/2026, 20:43:01 UTC
Last updated: 10/23/2026, 15:10:14 UTC
Views: 63
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