CVE-2026-26171: CWE-400: Uncontrolled Resource Consumption in Microsoft .NET 10.0
Uncontrolled resource consumption in .NET allows an unauthorized attacker to deny service over a network.
AI Analysis
Technical Summary
The vulnerability identified as CVE-2026-26171 affects Microsoft .NET 10.0 and is classified under CWE-400 (Uncontrolled Resource Consumption). It enables an unauthenticated attacker to perform a denial of service attack remotely by consuming excessive resources, leading to service disruption. The CVSS v3.1 base score is 7.5, indicating high severity with network attack vector, low attack complexity, no privileges or user interaction required, and impact limited to availability. Microsoft has released an official fix for this vulnerability as confirmed by the vendor advisory.
Potential Impact
Successful exploitation results in denial of service, causing the affected .NET service to become unavailable. There is no impact on confidentiality or integrity. The vulnerability can be exploited remotely without authentication or user interaction.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the provided patch promptly to remediate this vulnerability. Refer to the Microsoft security update guide at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26171 for detailed patch information and installation instructions.
CVE-2026-26171: CWE-400: Uncontrolled Resource Consumption in Microsoft .NET 10.0
Description
Uncontrolled resource consumption in .NET allows an unauthorized attacker to deny service over a network.
CVSS v3.1
Score 7.5high
Affected software
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability identified as CVE-2026-26171 affects Microsoft .NET 10.0 and is classified under CWE-400 (Uncontrolled Resource Consumption). It enables an unauthenticated attacker to perform a denial of service attack remotely by consuming excessive resources, leading to service disruption. The CVSS v3.1 base score is 7.5, indicating high severity with network attack vector, low attack complexity, no privileges or user interaction required, and impact limited to availability. Microsoft has released an official fix for this vulnerability as confirmed by the vendor advisory.
Potential Impact
Successful exploitation results in denial of service, causing the affected .NET service to become unavailable. There is no impact on confidentiality or integrity. The vulnerability can be exploited remotely without authentication or user interaction.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the provided patch promptly to remediate this vulnerability. Refer to the Microsoft security update guide at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26171 for detailed patch information and installation instructions.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-02-11T18:33:57.776Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26171","vendor":"Microsoft"}]
Threat ID: 69de7a1b82d89c981fd6a6c7
Added to database: 04/14/2026, 17:32:11 UTC
Last enriched: 07/15/2026, 08:42:20 UTC
Last updated: 07/31/2026, 19:22:58 UTC
Views: 185
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