Inefficient algorithmic complexity in .NET allows an unauthorized attacker to deny service over a network.

Project Subscriptions

Vendors Products
Linux Kernel Subscribe
Microsoft Subscribe
.net Framework Subscribe
System.security.cryptography.xml Subscribe
Windows Subscribe
Windows 10 1607 Subscribe
Windows 10 1809 Subscribe
Windows 10 21h2 Subscribe
Windows 10 22h2 Subscribe
Windows 11 23h2 Subscribe
Windows 11 24h2 Subscribe
Windows 11 25h2 Subscribe
Windows 11 26h1 Subscribe
Windows 11 26h2 Subscribe
Windows Server 2012 Subscribe
Windows Server 2016 Subscribe
Windows Server 2019 Subscribe
Windows Server 2022 Subscribe
Windows Server 2025 Subscribe
Advisories
Source ID Title
Github GHSA Github GHSA GHSA-r955-8q5j-3h83 Microsoft Security Advisory CVE-2026-96958 - .NET and Visual Studio Denial of Service Vulnerability
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Fri, 16 Oct 2026 19:45:00 +0000

Type Values Removed Values Added
First Time appeared Apple
Apple macos
Linux
Linux linux Kernel
Microsoft windows
Microsoft windows 10 1607
Microsoft windows 10 1809
Microsoft windows 10 21h2
Microsoft windows 10 22h2
Microsoft windows 11 23h2
Microsoft windows 11 24h2
Microsoft windows 11 25h2
Microsoft windows 11 26h1
Microsoft windows 11 26h2
Microsoft windows Server 2012
Microsoft windows Server 2016
Microsoft windows Server 2019
Microsoft windows Server 2022
Microsoft windows Server 2025
CPEs cpe:2.3:a:microsoft:.net:11.0.0:preview1:*:*:*:*:*:*
cpe:2.3:a:microsoft:.net:11.0.0:preview2:*:*:*:*:*:*
cpe:2.3:a:microsoft:.net:11.0.0:preview3:*:*:*:*:*:*
cpe:2.3:a:microsoft:.net:11.0.0:preview4:*:*:*:*:*:*
cpe:2.3:a:microsoft:.net:11.0.0:preview5:*:*:*:*:*:*
cpe:2.3:a:microsoft:.net:11.0.0:preview6:*:*:*:*:*:*
cpe:2.3:a:microsoft:.net:11.0.0:preview7:*:*:*:*:*:*
cpe:2.3:a:microsoft:.net:11.0.0:rc1:*:*:*:*:*:*
cpe:2.3:a:microsoft:.net_framework:3.5:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:.net_framework:4.6.2:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:.net_framework:4.7.1:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:.net_framework:4.7.2:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:.net_framework:4.7:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:.net_framework:4.8.1:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:.net_framework:4.8:*:*:*:*:*:*:*
cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10_1607:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10_1809:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10_21h2:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10_22h2:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_11_23h2:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_11_24h2:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_11_25h2:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_11_26h1:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_11_26h2:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2022:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2025:-:*:*:*:*:*:*:*
Vendors & Products Apple
Apple macos
Linux
Linux linux Kernel
Microsoft windows
Microsoft windows 10 1607
Microsoft windows 10 1809
Microsoft windows 10 21h2
Microsoft windows 10 22h2
Microsoft windows 11 23h2
Microsoft windows 11 24h2
Microsoft windows 11 25h2
Microsoft windows 11 26h1
Microsoft windows 11 26h2
Microsoft windows Server 2012
Microsoft windows Server 2016
Microsoft windows Server 2019
Microsoft windows Server 2022
Microsoft windows Server 2025

Tue, 13 Oct 2026 21:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 13 Oct 2026 19:15:00 +0000

Type Values Removed Values Added
Description Inefficient algorithmic complexity in .NET allows an unauthorized attacker to deny service over a network.
Title .NET Denial of Service Vulnerability
First Time appeared Microsoft
Microsoft .net
Microsoft .net Framework
Microsoft system.security.cryptography.xml
Weaknesses CWE-407
CPEs cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:.net_framework:*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:system.security.cryptography.xml:*:*:*:*:*:*:*:*
Vendors & Products Microsoft
Microsoft .net
Microsoft .net Framework
Microsoft system.security.cryptography.xml
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C'}


Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: microsoft

Published:

Updated: 2026-10-16T23:25:34.044Z

Reserved: 2026-09-23T20:35:19.929Z

Link: CVE-2026-96958

cve-icon Vulnrichment

Updated: 2026-10-13T19:38:06.227Z

cve-icon NVD

Status : Analyzed

Published: 2026-10-13T19:22:08.387

Modified: 2026-10-16T19:32:42.730

Link: CVE-2026-96958

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-16T05:45:08Z

Weaknesses