Description
Inclusion of functionality from untrusted control sphere in .NET allows an unauthorized attacker to execute code over a network.
Published: 2026-10-13
Score: 7.5 High
EPSS: < 1% Very Low
KEV: No
Impact: Remote Code Execution
Action: Apply Patch
AI Analysis

Impact

The vulnerability stems from .NET including functionality from an untrusted control sphere, allowing an attacker with network access to execute arbitrary code. The type of weakness is categorized as CWE-829, which indicates the execution of code originating from an untrusted source. If exploited, the attacker could take full control of the affected system, deploy malware, and pivot to other network assets.

Affected Systems

The affected products are Microsoft .NET in its 10.0, 9.0, and 8.0 releases, as well as Microsoft Visual Studio 2022 version 17.14 and Microsoft Visual Studio 2026 version 18.10. These specific releases contain the vulnerable code paths that allow untrusted control input to lead to code execution.

Risk and Exploitability

The CVSS score of 7.5 indicates a high severity risk. No EPSS score is currently available, so exploitation probability is unclear, and the vulnerability is not listed in CISA’s KEV catalog. The likely attack vector is remote over a network connection to the vulnerable application. Successful exploitation would give the attacker the same privileges as the process running the .NET or Visual Studio runtime, potentially leading to full system compromise.

Generated by OpenCVE AI on October 14, 2026 at 10:38 UTC.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Download and install the latest security update for the affected .NET and Visual Studio releases from Microsoft Security Response Center.
  • If an update is not yet available, limit network exposure of the vulnerable application or run it in a restricted sandboxed environment to reduce the attacker’s ability to reach the control sphere.
  • Review the application’s assembly loading configuration and disable remote assembly loading or enforce strong naming to prevent code from untrusted sources from being executed.

Generated by OpenCVE AI on October 14, 2026 at 10:38 UTC.

Tracking

Sign in to view the affected projects.

Advisories

No advisories yet.

History

Tue, 27 Oct 2026 04:30:00 +0000

Type Values Removed Values Added
First Time appeared Microsoft microsoft Visual Studio 2022 Version 17.14
Vendors & Products Microsoft microsoft Visual Studio 2022 Version 17.14

Tue, 20 Oct 2026 00:30:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

threat_severity

Important


Wed, 14 Oct 2026 00:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


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

Type Values Removed Values Added
Description Inclusion of functionality from untrusted control sphere in .NET allows an unauthorized attacker to execute code over a network.
Title .NET Remote Code Execution Vulnerability
First Time appeared Microsoft
Microsoft .net
Microsoft microsoft Visual Studio 2026 Version 18.10
Microsoft visual Studio 2022
Weaknesses CWE-829
CPEs cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:microsoft_visual_studio_2026_version_18.10:*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:visual_studio_2022:*:*:*:*:*:*:*:*
Vendors & Products Microsoft
Microsoft .net
Microsoft microsoft Visual Studio 2026 Version 18.10
Microsoft visual Studio 2022
References
Metrics cvssV3_1

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


Subscriptions

Microsoft .net Microsoft Visual Studio 2022 Version 17.14 Microsoft Visual Studio 2026 Version 18.10 Visual Studio 2022
cve-icon MITRE

Status: PUBLISHED

Assigner: microsoft

Published:

Updated: 2026-10-31T18:11:08.036Z

Reserved: 2026-09-22T19:05:22.813Z

Link: CVE-2026-96237

cve-icon Vulnrichment

Updated: 2026-10-13T19:46:21.312Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-13T19:21:49.587

Modified: 2026-10-22T22:19:56.620

Link: CVE-2026-96237

cve-icon Redhat

Severity : Important

Publid Date: 2026-10-13T17:00:00Z

Links: CVE-2026-96237 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-10-26T22:49:48Z

Weaknesses
  • CWE-829

    Inclusion of Functionality from Untrusted Control Sphere