CVE-2026-45490 - Vulnerability Details - OpenCVE

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

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact total

Vendors	Products
Microsoft	.net

No data.

No data.

References

Link	Providers
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45490
https://nvd.nist.gov/vuln/detail/CVE-2026-45490
https://www.cve.org/CVERecord?id=CVE-2026-45490

History

Thu, 11 Jun 2026 00:15:00 +0000

Type	Values Removed	Values Added
Weaknesses		CWE-266
References		https://nvd.nist.gov/vuln/detail/CVE-2026-45490 https://www.cve.org/CVERecord?id=CVE-2026-45490
Metrics	threat_severity `None`	threat_severity `Important`

Wed, 10 Jun 2026 11:30:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Tue, 09 Jun 2026 17:15:00 +0000

Type	Values Removed	Values Added
Description		Improper authorization in .NET allows an authorized attacker to elevate privileges locally.
Title		.NET SDK Elevation of Privilege Vulnerability
First Time appeared		Microsoft Microsoft .net
Weaknesses		CWE-285
CPEs		cpe:2.3:a:microsoft:.net::::::::
Vendors & Products		Microsoft Microsoft .net
References		https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45490
Metrics		cvssV3_1 `{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C'}`

MITRE

Status: PUBLISHED

Assigner: microsoft

Published: 2026-06-09T17:04:43.900Z

Updated: 2026-06-10T17:53:33.889Z

Reserved: 2026-05-12T16:07:22.618Z

Link: CVE-2026-45490

Vulnrichment

Updated: 2026-06-10T10:29:06.648Z

NVD

Status : Awaiting Analysis

Published: 2026-06-09T17:17:25.447

Modified: 2026-06-09T19:32:51.440

Link: CVE-2026-45490

Redhat

Severity : Important

Publid Date: 2026-06-09T17:04:43Z

Links: CVE-2026-45490 - Bugzilla

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