CVE-2026-35433: CWE-20: Improper Input Validation in Microsoft .NET 10.0
Improper input validation in .NET allows an unauthorized attacker to elevate privileges locally.
AI Analysis
Technical Summary
CVE-2026-35433 describes an improper input validation vulnerability in Microsoft .NET version 10.0. This vulnerability enables a local attacker without privileges to elevate their privileges on the affected system. The CVSS 3.1 base score is 7.3, reflecting high severity with high impact on confidentiality and integrity, and low impact on availability. Microsoft has released an official fix for this vulnerability, as confirmed by the vendor advisory.
Potential Impact
An unauthorized local attacker can exploit this vulnerability to elevate privileges, potentially gaining higher-level access than intended. This can lead to unauthorized access to sensitive information and modification of system components. The impact on availability is low.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the patch provided by Microsoft for .NET 10.0 as soon as possible. Refer to the Microsoft security update guide at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-35433 for detailed remediation instructions.
CVE-2026-35433: CWE-20: Improper Input Validation in Microsoft .NET 10.0
Description
Improper input validation in .NET allows an unauthorized attacker to elevate privileges locally.
CVSS v3.1
Score 7.3high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-35433 describes an improper input validation vulnerability in Microsoft .NET version 10.0. This vulnerability enables a local attacker without privileges to elevate their privileges on the affected system. The CVSS 3.1 base score is 7.3, reflecting high severity with high impact on confidentiality and integrity, and low impact on availability. Microsoft has released an official fix for this vulnerability, as confirmed by the vendor advisory.
Potential Impact
An unauthorized local attacker can exploit this vulnerability to elevate privileges, potentially gaining higher-level access than intended. This can lead to unauthorized access to sensitive information and modification of system components. The impact on availability is low.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the patch provided by Microsoft for .NET 10.0 as soon as possible. Refer to the Microsoft security update guide at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-35433 for detailed remediation instructions.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-04-02T19:21:11.804Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-35433","vendor":"Microsoft"}]
Threat ID: 6a03654ccbff5d861008c809
Added to database: 05/12/2026, 17:37:16 UTC
Last enriched: 07/15/2026, 09:05:03 UTC
Last updated: 07/31/2026, 19:22:58 UTC
Views: 55
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