Description
Improper authentication in ASP.NET Core allows an unauthorized attacker to elevate privileges over a network.
Published: 2026-10-13
Score: 8.1 High
EPSS: < 1% Very Low
KEV: No
AI Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

No solution or workaround provided in the CVE record.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

Sign in to view the affected projects.

Advisories
Source ID Title
Github GHSA Github GHSA GHSA-x3vp-85cm-q97r Microsoft Security Advisory CVE-2026-70175 - ASP.NET Core Elevation of Privilege Vulnerability
History

Tue, 10 Nov 2026 20:45:00 +0000

Type Values Removed Values Added
First Time appeared Microsoft .net 10.0 Installed On Linux
Microsoft .net 10.0 Installed On Mac Os
Microsoft .net 10.0 Installed On Windows
Microsoft .net 11.0 Installed On Linux
Microsoft .net 11.0 Installed On Mac Os
Microsoft .net 11.0 Installed On Windows
Microsoft .net 8.0 Installed On Linux
Microsoft .net 8.0 Installed On Mac Os
Microsoft .net 8.0 Installed On Windows
Microsoft .net 9.0 Installed On Linux
Microsoft .net 9.0 Installed On Mac Os
Microsoft .net 9.0 Installed On Windows
Microsoft microsoft.aspnetcore.identity.ui
Microsoft microsoft Visual Studio 2026 Version 18.11
Microsoft microsoft Visual Studio 2026 Version 18.12
Microsoft visual Studio 2026 Version 18.13
CPEs cpe:2.3:a:microsoft:.net_10.0_installed_on_linux:*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:.net_10.0_installed_on_mac_os:*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:.net_10.0_installed_on_windows:*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:.net_11.0_installed_on_linux:*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:.net_11.0_installed_on_mac_os:*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:.net_11.0_installed_on_windows:*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:.net_8.0_installed_on_linux:*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:.net_8.0_installed_on_mac_os:*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:.net_8.0_installed_on_windows:*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:.net_9.0_installed_on_linux:*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:.net_9.0_installed_on_mac_os:*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:.net_9.0_installed_on_windows:*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:microsoft.aspnetcore.identity.ui:*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:microsoft_visual_studio_2026_version_18.11:*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:microsoft_visual_studio_2026_version_18.12:*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:visual_studio_2026_version_18.13:*:*:*:*:*:*:*:*
Vendors & Products Microsoft .net 10.0 Installed On Linux
Microsoft .net 10.0 Installed On Mac Os
Microsoft .net 10.0 Installed On Windows
Microsoft .net 11.0 Installed On Linux
Microsoft .net 11.0 Installed On Mac Os
Microsoft .net 11.0 Installed On Windows
Microsoft .net 8.0 Installed On Linux
Microsoft .net 8.0 Installed On Mac Os
Microsoft .net 8.0 Installed On Windows
Microsoft .net 9.0 Installed On Linux
Microsoft .net 9.0 Installed On Mac Os
Microsoft .net 9.0 Installed On Windows
Microsoft microsoft.aspnetcore.identity.ui
Microsoft microsoft Visual Studio 2026 Version 18.11
Microsoft microsoft Visual Studio 2026 Version 18.12
Microsoft visual Studio 2026 Version 18.13

Thu, 15 Oct 2026 13:30:00 +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 Improper authentication in ASP.NET Core allows an unauthorized attacker to elevate privileges over a network.
Title ASP.NET Core Elevation of Privilege Vulnerability
First Time appeared Microsoft
Microsoft asp.net Core
Microsoft microsoft Visual Studio 2026 Version 18.10
Microsoft visual Studio 2022
Weaknesses CWE-640
CPEs cpe:2.3:a:microsoft:asp.net_core:*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:microsoft_visual_studio_2026_version_18.10:*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:visual_studio_2022:*:*:*:*:*:*:*:*
Vendors & Products Microsoft
Microsoft asp.net Core
Microsoft microsoft Visual Studio 2026 Version 18.10
Microsoft visual Studio 2022
References
Metrics cvssV3_1

{'score': 8.1, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C'}


Subscriptions

Microsoft .net 10.0 Installed On Linux .net 10.0 Installed On Mac Os .net 10.0 Installed On Windows .net 11.0 Installed On Linux .net 11.0 Installed On Mac Os .net 11.0 Installed On Windows .net 8.0 Installed On Linux .net 8.0 Installed On Mac Os .net 8.0 Installed On Windows .net 9.0 Installed On Linux .net 9.0 Installed On Mac Os .net 9.0 Installed On Windows Asp.net Core Microsoft.aspnetcore.identity.ui Microsoft Visual Studio 2026 Version 18.10 Microsoft Visual Studio 2026 Version 18.11 Microsoft Visual Studio 2026 Version 18.12 Visual Studio 2022 Visual Studio 2026 Version 18.13
cve-icon MITRE

Status: PUBLISHED

Assigner: microsoft

Published:

Updated: 2026-11-10T20:39:41.080Z

Reserved: 2026-08-03T23:48:30.859Z

Link: CVE-2026-70175

cve-icon Vulnrichment

Updated: 2026-10-13T20:53:42.509Z

cve-icon NVD

Status : Undergoing Analysis

Published: 2026-10-13T19:19:31.687

Modified: 2026-11-10T21:19:58.723

Link: CVE-2026-70175

cve-icon Redhat

Severity : Important

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

Links: CVE-2026-70175 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-10-24T21:45:17Z

Weaknesses