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Recorded 25 Oct 2026 at 19:05 UTC. This is what ChangeIntel recorded, including the title, summary, facts and links. It is not a statement of the source's current position. See the latest record.

CVEMicrosoft Security Response Center

ASP.NET Core Elevation of Privilege Vulnerability

Incorrect default permissions in ASP.NET Core allows an authorized attacker to elevate privileges locally.

Cite this recorded revision

What it said

CVE
CVE-2026-114148
Severity
Important
CVSS base score
Not published
CVSS vector
Not published
Impact
Elevation of Privilege
Exploitation detected
Not reported by MSRC
Publicly disclosed
No
Exploitability
Exploitation Less Likely
Component
ASP.NET Core
Weakness
CWE-276: Incorrect Default Permissions
Issued by
Microsoft
Customer action
Required: apply the update
Affected products
.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, .NET source-build Linux tarballs (all archive types), ASP.NET Core runtime and targeting-pack Linux tarballs (Microsoft-published)
Updates that fix it
KB5133964: .NET 8.0 installed on Linux, .NET 8.0 installed on Mac OS, .NET 8.0 installed on Windows (restart required); KB5133965: .NET 9.0 installed on Linux, .NET 9.0 installed on Mac OS, .NET 9.0 installed on Windows, ASP.NET Core runtime and targeting-pack Linux tarballs (Microsoft-published) (restart required); KB5133966: .NET 10.0 installed on Linux, .NET 10.0 installed on Mac OS, .NET 10.0 installed on Windows, .NET source-build Linux tarballs (all archive types) (restart required)
CISA KEV
Not listed in the collected catalog
EPSS
Not scored
Public exploit code
No Nuclei template listed
Published
25 Oct 2026 07:00 UTC
Last revised
25 Oct 2026 07:00 UTC
Revision note
Information published.

Source evidence when recorded

Microsoft security releases
Complete at observationRead 25 Oct 2026 at 19:04 UTC
CISA KEV
Complete at observationRead 25 Oct 2026 at 19:04 UTC
FIRST EPSS
Complete at observationRead 25 Oct 2026 at 19:04 UTC
Public exploit code
Complete at observationRead 25 Oct 2026 at 19:04 UTC

Coverage describes the sources at this observation. A complete read then does not establish their current position.

What changed

First observed 25 Oct 2026
  1. 25 Oct 2026 · 19:05:13 UTC Updates that fix itKB5133964: .NET 8.0 installed on Linux, .NET 8.0 installed on Mac OS, .NET 8.0 installed on Windows (restart required); KB5133965: .NET 9.0 installed on Linux, .NET 9.0 installed on Mac OS, .NET 9.0 installed on Windows, Microsoft Edge (Chromium-based) (restart required); KB5133966: .NET 10.0 installed on Linux, .NET 10.0 installed on Mac OS, .NET 10.0 installed on Windows, Microsoft Edge (Chromium-based) (restart required) → KB5133964: .NET 8.0 installed on Linux, .NET 8.0 installed on Mac OS, .NET 8.0 installed on Windows (restart required); KB5133965: .NET 9.0 installed on Linux, .NET 9.0 installed on Mac OS, .NET 9.0 installed on Windows, ASP.NET Core runtime and targeting-pack Linux tarballs (Microsoft-published) (restart required); KB5133966: .NET 10.0 installed on Linux, .NET 10.0 installed on Mac OS, .NET 10.0 installed on Windows, .NET source-build Linux tarballs (all archive types) (restart required)
  2. 25 Oct 2026 · 19:05:13 UTC Affected products.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, Microsoft Edge (Chromium-based) → .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, .NET source-build Linux tarballs (all archive types), ASP.NET Core runtime and targeting-pack Linux tarballs (Microsoft-published)

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ChangeIntel

An IT change radar: releases, security, known issues, retirements, documentation changes, and service status from public sources. Every item links to supporting evidence; dates and statuses can change after they are read.

Sources read 25 Oct 20:05 UTC · 271 of 271 readable · 269 fully read · documentation 464/464 current

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