Summary
Impact: Elevation of Privilege. Microsoft rating: Important. Not known to be exploited — Exploitation Less Likely. Customer action: Required.
Details
According to the CVSS metric, the attack complexity is high (AC:H). What does that mean for this vulnerability?
Successful exploitation requires a Linux environment where users share a process identifier namespace and process information is exposed to other local users through the proc filesystem.
What privileges could be gained by an attacker who successfully exploited this vulnerability?
An attacker who successfully exploited this vulnerability could gain the privileges of the user account or service account running the affected process.
Security updates
18.9.3 — https://learn.microsoft.com/en-us/visualstudio/releases/2026/release-notes
17.14.40 — https://learn.microsoft.com/en-us/visualstudio/releases/2022/release-notes
9.0.20 — https://support.microsoft.com/kb/5126105
10.0.12 — https://support.microsoft.com/kb/5126106
Vulnerabilities 1
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High 7.0
.NET Elevation of Privilege Vulnerability
Exposure of sensitive information to an unauthorized actor in .NET allows an authorized attacker to elevate privileges locally.
Revision history
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#2
Security Updates table updated provide links to the KB articles and download center updates. Microsoft recommends installing the updates.
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#1
Information published.
References
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CVE-2026-69806 .NET Elevation of Privilege Vulnerability - HTML
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69806
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Microsoft Exploitability Index
https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1
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Microsoft Support Lifecycle
https://support.microsoft.com/lifecycle
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Common Vulnerability Scoring System
https://www.first.org/cvss