CVE-2026-26131
Incorrect Default Permissions in .NET Allow Local Privilege Escalation
Publication date: 2026-03-10
Last updated on: 2026-04-01
Assigner: Microsoft Corporation
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| microsoft | .net | From 10.0.0 (inc) to 10.0.4 (exc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-276 | During installation, installed file permissions are set to allow anyone to modify those files. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability involves incorrect default permissions in the .NET framework that allow an authorized attacker to elevate their privileges locally.
How can this vulnerability impact me? :
An attacker who already has some level of authorization on the system can exploit this vulnerability to gain higher privileges than intended, potentially leading to full control over the affected system.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
I don't know
How can this vulnerability be detected on my network or system? Can you suggest some commands?
I don't know
What immediate steps should I take to mitigate this vulnerability?
The vulnerability involves incorrect default permissions in .NET that allow an authorized attacker to elevate privileges locally.
To mitigate this vulnerability, it is important to apply any security updates or patches provided by Microsoft as soon as they become available.