CVE-2026-45490

high

Description

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

References

https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-45490.json

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45490

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-35674

https://bugzilla.redhat.com/show_bug.cgi?id=2487184

https://access.redhat.com/security/cve/CVE-2026-45490

Details

Source: Mitre, NVD

Published: 2026-06-09

Updated: 2026-07-23

Risk Information

CVSS v2

Base Score: 6.8

Vector: CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C

Severity: Medium

CVSS v3

Base Score: 7.8

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Severity: High

EPSS

EPSS: 0.00424