Instituto Nacional de ciberseguridad. Sección Incibe
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CVE-2026-45490

Severity CVSS v4.0:
Pending analysis
Type:
CWE-285 Improper Authorization
Publication date:
09/06/2026
Last modified:
23/07/2026

Description

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

Impact

Vector 3.x
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.80 HIGH
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x
7.80
Severity 3.x
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:* 8.0.0 (including) 8.0.28 (excluding)
cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:* 9.0.0 (including) 9.0.17 (excluding)
cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:* 10.0.0 (including) 10.0.9 (excluding)
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools