CVE-2026-45490

HighCVSS 7.8

Published: 09/06/2026(UTC)Updated: 30/06/2026(UTC)Translated: 01/07/2026(UTC)NVD NIST

Exploitation Probability (EPSS)

Low risk

0.38%

30th percentile - higher than 30% of all known CVEs

Summary

An improper authorization vulnerability in .NET allows a local attacker to elevate privileges. An attacker with existing access can gain higher system privileges.

Risk Assessment

The risk is that an attacker could escalate privileges, potentially leading to full system compromise or unauthorized access to sensitive data.

Recommendation

Immediately update .NET to the latest patched version. Review authorization configurations in your applications as well.

Original NVD description (English source)

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