CVE-2026-45490

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

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45490	Vendor Advisory
https://access.redhat.com/security/cve/CVE-2026-45490
https://bugzilla.redhat.com/show_bug.cgi?id=2487184
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-45490.json

Configurations

Configuration 1 (hide)

AND

OR	cpe:2.3:a:microsoft:.net::::::::
	cpe:2.3:a:microsoft:.net::::::::
	cpe:2.3:a:microsoft:.net::::::::

cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*

History

30 Jun 2026, 03:20

Type	Values Removed	Values Added
CWE		CWE-266
References		() https://access.redhat.com/security/cve/CVE-2026-45490 - () https://bugzilla.redhat.com/show_bug.cgi?id=2487184 - () https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-45490.json -

17 Jun 2026, 21:52

Type	Values Removed	Values Added
References	~~() https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45490 -~~	() https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45490 - Vendor Advisory
CWE		CWE-863
CPE		cpe:2.3:o:microsoft:windows:-:::::::* cpe:2.3:a:microsoft:.net::::::::
First Time		Microsoft Microsoft windows Microsoft .net

09 Jun 2026, 17:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-06-09 17:17

Updated : 2026-07-15 02:22

NVD link : CVE-2026-45490

Mitre link : CVE-2026-45490

CVE.ORG link : CVE-2026-45490

JSON object : View

Products Affected

microsoft

.net
windows

CWE

CWE-285

Improper Authorization

CWE-863

Incorrect Authorization

CWE-266

Incorrect Privilege Assignment

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