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Advisory record · GHSA-2865-hh9g-w894

Microsoft Security Advisory CVE-2025-24070: .NET Elevation of Privilege Vulnerability

CVSS 7.0 HighEPSS 0.010 · 63rd percentile

Published by the GitHub Advisory Database at 11 Mar 2025, 19:24 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
Microsoft.AspNetCore.IdentityNuGet>=2.3.0, <2.3.12.3.1
Microsoft.AspNetCore.App.Runtime.linux-armNuGet>=9.0.0, <9.0.3 || >=8.0.0, <8.0.14 || >=6.0.0, <=6.0.369.0.3, 8.0.14
Microsoft.AspNetCore.App.Runtime.linux-arm64NuGet>=9.0.0, <9.0.3 || >=8.0.0, <8.0.14 || >=6.0.0, <=6.0.369.0.3, 8.0.14
Microsoft.AspNetCore.App.Runtime.linux-musl-armNuGet>=9.0.0, <9.0.3 || >=8.0.0, <8.0.14 || >=6.0.0, <=6.0.369.0.3, 8.0.14
Microsoft.AspNetCore.App.Runtime.linux-musl-arm64NuGet>=9.0.0, <9.0.3 || >=8.0.0, <8.0.14 || >=6.0.0, <=6.0.369.0.3, 8.0.14
Microsoft.AspNetCore.App.Runtime.linux-musl-x64NuGet>=9.0.0, <9.0.3 || >=8.0.0, <8.0.14 || >=6.0.0, <=6.0.369.0.3, 8.0.14
Microsoft.AspNetCore.App.Runtime.linux-x64NuGet>=9.0.0, <9.0.3 || >=8.0.0, <8.0.14 || >=6.0.0, <=6.0.369.0.3, 8.0.14
Microsoft.AspNetCore.App.Runtime.osx-arm64NuGet>=9.0.0, <9.0.3 || >=8.0.0, <8.0.14 || >=6.0.0, <=6.0.369.0.3, 8.0.14
Microsoft.AspNetCore.App.Runtime.osx-x64NuGet>=9.0.0, <9.0.3 || >=8.0.0, <8.0.14 || >=6.0.0, <=6.0.369.0.3, 8.0.14
Microsoft.AspNetCore.App.Runtime.win-armNuGet>=8.0.0, <8.0.14 || >=9.0.0, <9.0.3 || >=6.0.0, <=6.0.368.0.14, 9.0.3
Microsoft.AspNetCore.App.Runtime.win-arm64NuGet>=9.0.0, <9.0.3 || >=8.0.0, <8.0.14 || >=6.0.0, <=6.0.369.0.3, 8.0.14
Microsoft.AspNetCore.App.Runtime.win-x64NuGet>=9.0.0, <9.0.3 || >=8.0.0, <8.0.14 || >=6.0.0, <=6.0.369.0.3, 8.0.14
Microsoft.AspNetCore.App.Runtime.win-x86NuGet>=8.0.0, <8.0.14 || >=9.0.0, <9.0.3 || >=6.0.0, <=6.0.368.0.14, 9.0.3
Identifiers
GHSA-2865-hh9g-w894 · BIT-aspnet-core-2025-24070 · CVE-2025-24070
Weakness (CWE)
CWE-1390
Tags
Published
11 Mar 2025
Updated
23 Oct 2025

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

CVE-2025-24070 affects Microsoft.AspNetCore.Identity versions from 2.3.0 before 2.3.1, and several Microsoft.AspNetCore.App.Runtime packages (linux, osx, and win variants) in the 6.0, 8.0 and 9.0 lines. An attacker may be able to exploit an ASP.NET Core application that calls RefreshSignInAsync with an improperly authenticated user parameter to sign into another user's account, gaining elevated privileges. Upgrade Microsoft.AspNetCore.Identity to 2.3.1, and the runtime packages to 8.0.14 or 9.0.3; no fix is listed for 6.0.

Written 9 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
7.0 High 3.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H/E:U/RL:O/RC:C CNA (microsoft)
  • CISA KEV Not listed.
  • EPSS 0.010, the 63rd percentile, on 11 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 11 Mar 2025, 18:09 UTC Published by the maintainers as a GitHub repository advisory
  2. 31 Oct 2026, 15:22 UTC First seen by agentprime
  3. 31 Oct 2026, 15:22 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.