Description
Improper authorization in .NET allows an authorized attacker to elevate privileges locally.
Published: 2026-06-09
Score: 7.8 High
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Impact

Improper authorization in the .NET SDK enables an attacker with local authorization to elevate privileges. The vulnerability is classified as CWE-285 and allows a user to acquire higher rights on the same machine, potentially compromising confidentiality and integrity of the system.

Affected Systems

The vulnerability affects Microsoft .NET 10.0, Microsoft .NET 8.0, and Microsoft .NET 9.0. No specific sub‑release or patch level is specified in the data available.

Risk and Exploitability

The CVSS score of 7.8 denotes a high severity risk. EPSS data is not available, so an exploit probability estimate cannot be provided. The vulnerability is not listed in CISA’s KEV catalog. It is likely that the attacker must already have local legitimate access and then exploit the improper authorization to gain elevated privileges; this attack vector is inferred from the description.

Generated by OpenCVE AI on June 9, 2026 at 19:11 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Update Microsoft .NET SDK to the latest version containing the security fix as soon as it becomes available.
  • Restrict installation and use of the .NET SDK to authenticated administrators only, limiting exposure to trusted users.
  • Enable audit logging for privilege‑escalation attempts involving .NET components and review logs regularly for suspicious activity.

Generated by OpenCVE AI on June 9, 2026 at 19:11 UTC.

Tracking

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Advisories

No advisories yet.

History

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
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'}

Subscriptions

Microsoft .net
cve-icon MITRE

Status: PUBLISHED

Assigner: microsoft

Published:

Updated: 2026-06-10T10:29:11.275Z

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

Link: CVE-2026-45490

cve-icon Vulnrichment

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

cve-icon NVD

Status : Awaiting Analysis

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

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

Link: CVE-2026-45490

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-10T11:15:05Z

Weaknesses