CVE-2026-42899 Details
Description
Loop with unreachable exit condition ('infinite loop') in ASP.NET Core allows an unauthorized attacker to deny service over a network.
A denial-of-service vulnerability has been identified in ASP.NET Core, specifically in versions 8.0, 9.0, and 10.0 across Windows, Linux, and Mac OS. This vulnerability arises from a loop with an unreachable exit condition, creating an infinite loop that allows an unauthorized attacker to disrupt service over the network.
Users can apply the security update for this vulnerability. Instructions for downloading the update are available on the .NET website. For version-specific guidance, refer to the Microsoft Knowledge Base articles linked in the update details.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed May 12, 2026References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-835 | Loop with Unreachable Exit Condition ('Infinite Loop') | redhat-SADP |
| CWE-835 | Loop with Unreachable Exit Condition ('Infinite Loop') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| microsoft .net | >= 8.0.0, < 8.0.27 >= 9.0.0, < 9.0.16 >= 10.0.0, < 10.0.8 |
CPE
Remediation
| |
| apple macos | All versions |
CPE
Remediation
| |
| linux linux kernel | All versions |
CPE
Remediation
| |
| microsoft windows | All versions |
CPE
Remediation
| |
Change History
6 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 15, 2026 | CVE Modified | redhat-SADP |
| Jun 30, 2026 | CVE Modified | redhat-SADP |
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| May 13, 2026 | Initial Analysis | [email protected] |
| May 12, 2026 | New CVE Received | [email protected] |