CVE-2026-45490

HIGH

Microsoft .NET - Local Privilege Escalation

Title source: manual
STIX 2.1

Description

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

References (1)

Core 1
Core References
Vendor Advisory vendor-advisory patch
.NET SDK Elevation of Privilege Vulnerability
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45490

Scores

CVSS v3 7.8
EPSS 0.0022
EPSS Percentile 12.2%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-285
Status published
Products (3)
Microsoft/.NET 10.0 10.0.0 - 10.0.9
Microsoft/.NET 8.0 8.0.0 - 8.0.28
Microsoft/.NET 9.0 9.0.0 - 9.0.17
Published Jun 09, 2026
Tracked Since Jun 09, 2026