CVE-2026-70175

high

Description

Improper authentication in ASP.NET Core allows an unauthorized attacker to elevate privileges over a network.

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70175

https://github.com/dotnet/aspnetcore/security/advisories/GHSA-x3vp-85cm-q97r

https://github.com/dotnet/aspnetcore/discussions/69793

https://github.com/dotnet/announcements/issues/457

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-99694

Details

Source: Mitre, NVD

Published: 2026-10-13

Updated: 2026-10-14

Risk Information

CVSS v2

Base Score: 7.6

Vector: CVSS2#AV:N/AC:H/Au:N/C:C/I:C/A:C

Severity: High

CVSS v3

Base Score: 8.1

Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: High