Uncontrolled Recursion Vulnerability in .NET by Microsoft
CVE-2026-58280

7.5HIGH

Key Information:

Vendor

Microsoft
Status
.net 10.0
.net 11.0
.net 8.0
.net 9.0
Vendor
CVE Published:
13 October 2026

What is CVE-2026-58280?

An issue in the .NET framework arises from uncontrolled recursion, enabling unauthorized attackers to exploit this weakness to launch denial of service attacks over a network, potentially causing disruption to services and impacting users. Prompt attention and mitigation steps are advised to protect systems reliant on affected .NET versions.

Affected Version(s)

.NET 10.0 10.0.0 < 10.0.13

.NET 11.0 11.0.0 < 11.0.0-rc.2

.NET 8.0 8.0.0 < 8.0.32

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE...
vendor-advisorypatch

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.