CVE-2026-45490: CWE-285: Improper Authorization in Microsoft .NET 10.0
Improper authorization in .NET allows an authorized attacker to elevate privileges locally.
AI Analysis
Technical Summary
This vulnerability (CWE-285) in Microsoft .NET 10.0 arises from improper authorization controls, enabling an attacker with some level of authorization to escalate their privileges on the local system. The CVSS 3.1 base score is 7.8, reflecting high impact on confidentiality, integrity, and availability. Microsoft has published an official fix to remediate this vulnerability.
Potential Impact
An attacker with local authorized access can exploit this flaw to gain elevated privileges, potentially leading to full system compromise. The vulnerability impacts confidentiality, integrity, and availability of the affected system.
Mitigation Recommendations
Apply the official patch provided by Microsoft as detailed in their advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45490. This fix addresses the improper authorization issue and mitigates the risk of privilege escalation. No additional mitigation steps are indicated by the vendor.
CVE-2026-45490: CWE-285: Improper Authorization in Microsoft .NET 10.0
Description
Improper authorization in .NET allows an authorized attacker to elevate privileges locally.
CVSS v3.1
Score 7.8high
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CWE-285) in Microsoft .NET 10.0 arises from improper authorization controls, enabling an attacker with some level of authorization to escalate their privileges on the local system. The CVSS 3.1 base score is 7.8, reflecting high impact on confidentiality, integrity, and availability. Microsoft has published an official fix to remediate this vulnerability.
Potential Impact
An attacker with local authorized access can exploit this flaw to gain elevated privileges, potentially leading to full system compromise. The vulnerability impacts confidentiality, integrity, and availability of the affected system.
Mitigation Recommendations
Apply the official patch provided by Microsoft as detailed in their advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45490. This fix addresses the improper authorization issue and mitigates the risk of privilege escalation. No additional mitigation steps are indicated by the vendor.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-05-12T16:07:22.618Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45490","vendor":"Microsoft"}]
Threat ID: 6a284cdf8dd33fbd85664d9a
Added to database: 6/9/2026, 5:26:55 PM
Last enriched: 6/9/2026, 10:11:00 PM
Last updated: 6/10/2026, 6:42:32 AM
Views: 4
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