Privilege Elevation Flaw in .NET Framework by Microsoft
CVE-2026-26131

7.8HIGH

Key Information:

Vendor

Microsoft
Status
.net 10.0
Vendor
CVE Published:
10 March 2026

What is CVE-2026-26131?

An issue in the .NET Framework allows attackers to alter permissions, leading to local privilege escalation. When an attacker exploits this flaw, they gain elevated access to system resources, compromising the security of user data and potentially allowing unauthorized actions within the system. It is essential for users and administrators to apply the latest patches to mitigate this vulnerability and secure their systems against abuse.

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Deploy the Patch

Affected Version(s)

.NET 10.0 10.0.0 < 10.0.4

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE...
vendor-advisorypatch

CVSS V3.1

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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