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CVE-2026-45490

nvd nist
Published: Jun 9, 2026Modified: Jul 15, 2026

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7.8
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Exploitability: 1.8 / Impact: 5.9
Source: secure@microsoft.com (Secondary)

Description

Improper authorization in .NET allows an authorized attacker to elevate privileges locally.

Affected (3)

Products: Microsoft: .net
Microsoft
1 product
.net
Configuration A
3 vulnerable · 1 platform
Vulnerable SoftwareAffected Versions
Microsoft
.net
From 10.0.0 to 10.0.9
.net
From 8.0.0 to 8.0.28
.net
From 9.0.0 to 9.0.17
Running on/withPlatform Versions
Microsoft
Windows
All versions

Related CWEs

CWE-266
Incorrect Privilege Assignment
A product incorrectly assigns a privilege to a particular actor, creating an unintended sphere of control for that actor.
CWE-285
Improper Authorization
The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action.
CWE-863
Incorrect Authorization
The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. This allows attackers to bypass intended access restrictions.

References (4)

Source: secure@microsoft.com
Vendor Advisory
Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c

Timeline

No history available yet.