High 7.8Published Oct 29, 2026

CVE-2026-114148ASP.NET Core Elevation of Privilege Vulnerability

Updated under an hour ago (Oct 30, 2026, 1:00 AM ET)

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It affects Microsoft .NET 10.0 installed on Linux and 13 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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

CVSS: 7.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
Weakness (CWE): CWE-276
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: microsoft
NVD analysis: Awaiting Analysis
Record last updated: Oct 29, 2026
First seen by InfoSec Signals: Oct 29, 2026

Affected products

Affected products

Microsoft .NET 10.0 installed on Linux microsoft:net_10.0_installed_on_linux (from the name)	from 10.0.0 before 10.0.403	CNA record
Microsoft .NET 10.0 installed on Mac OS microsoft:net_10.0_installed_on_mac_os (from the name)	from 10.0.0 before 10.0.403	CNA record
Microsoft .NET 10.0 installed on Windows microsoft:net_10.0_installed_on_windows (from the name)	from 10.0.0 before 10.0.403	CNA record
Microsoft .NET 11.0 installed on Linux microsoft:net_11.0_installed_on_linux (from the name)	from 11.0.0-preview.1 before 11.0.100-rc.3	CNA record
Microsoft .NET 11.0 installed on Mac OS microsoft:net_11.0_installed_on_mac_os (from the name)	from 11.0.0-preview.1 before 11.0.100-rc.3	CNA record
Microsoft .NET 11.0 installed on Windows microsoft:net_11.0_installed_on_windows (from the name)	from 11.0.0-preview.1 before 11.0.100-rc.3	CNA record
Microsoft .NET 8.0 installed on Linux microsoft:net_8.0_installed_on_linux (from the name)	from 8.0.0 before 8.0.427	CNA record
Microsoft .NET 8.0 installed on Mac OS microsoft:net_8.0_installed_on_mac_os (from the name)	from 8.0.0 before 8.0.427	CNA record
Microsoft .NET 8.0 installed on Windows microsoft:net_8.0_installed_on_windows (from the name)	from 8.0.0 before 8.0.427	CNA record
Microsoft .NET 9.0 installed on Linux microsoft:net_9.0_installed_on_linux (from the name)	from 9.0.0 before 9.0.320	CNA record
1–10 of 14

References

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-114148	vendor-advisory, patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.