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CVE-2026-70179

HighCVSS 7.5/10Last modified Oct 22, 2026

Description

Authentication bypass by spoofing in ASP.NET Core allows an authorized attacker to elevate privileges over a network.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

Affected software

Source: the vendor's advisory (CNA). NVD analysis pending.

Vendor	Product	Versions
Microsoft	Microsoft Visual Studio 2022 version 17.14	>= 17.14.0, < 17.14.42
Microsoft	Microsoft Visual Studio 2026 version 18.10	>= 18.10.0, < 18.10.4
Microsoft	Microsoft.AspNetCore.Authentication.Negotiate	>= 10.0.0, < 10.0.13

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70179

Timeline

Published: Oct 13, 2026
Last modified: Oct 22, 2026
NVD status: Awaiting Analysis

Related CVEs from 2026

CVE-2026-70185.6A vulnerability was determined in Datavane Datavines up to 13607645e14a4982468cfdbcf75c85cde63bae71. The affected element is an unknown func CVE-2026-701817.5Allocation of resources without limits or throttling in ASP.NET Core allows an unauthorized attacker to deny service over a network.CVE-2026-701827.8Weak authentication in Windows Bind Filter Driver allows an authorized attacker to elevate privileges locally.CVE-2026-701837.5Concurrent execution using shared resource with improper synchronization ('race condition') in ASP.NET Core allows an authorized attacker to CVE-2026-701847.8Improper resolution of path equivalence in Windows Backup Engine allows an authorized attacker to elevate privileges locally.CVE-2026-701858.8Protection mechanism failure in Windows PowerShell allows an authorized attacker to bypass a security feature locally.CVE-2026-701867.5Deadlock in ASP.NET Core allows an unauthorized attacker to deny service over a network.CVE-2026-701878.1Use after free in Remote Desktop Gateway Service allows an unauthorized attacker to execute code over a network.CVE-2026-701889.1Inconsistent interpretation of http requests ('http request/response smuggling') in ASP.NET Core allows an unauthorized attacker to bypass a CVE-2026-701896.7Heap-based buffer overflow in SQL Server allows an authorized attacker to execute code locally.CVE-2026-70198.8A vulnerability was identified in Tenda F456 1.0.0.5. The impacted element is the function fromP2pListFilter of the file /goform/P2pListFilt CVE-2026-701907.3Improper link resolution before file access ('link following') in .NET allows an authorized attacker to elevate privileges locally.

CVE-2026-70179: High severity, CVSS 7.5 | Vulnix