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CVE.org (no NVD analysis yet)· CNA microsoft

CVE-2026-114157: ASP.NET Core Security Feature Bypass Vulnerability

HighCVSS 7.5 · v3.1—No exploit Fix available

Noroxi assessment

Priority: Monitor (action score 30/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.24% (FIRST EPSS).
  • Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. Special conditions such as timing or configuration are required.
  • Fixed version: .NET 10.0 installed on Windows 10.0.15; .NET 11.0 installed on Windows 11.0.0; .NET 8.0 installed on Windows 8.0.34.

Low priority for now. Upgrade to .NET 10.0 installed on Windows 10.0.15; .NET 11.0 installed on Windows 11.0.0; .NET 8.0 installed on Windows 8.0.34 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

Concurrent execution using shared resource with improper synchronization ('race condition') in ASP.NET Core allows an authorized attacker to elevate privileges locally.

Published
Nov 10, 2026
Updated
Nov 11, 2026
EPSS
0.2% · 16th percentile

Report tools

JSON

Action score

30

Monitor

Low priority for now.

CVSS
30 / 40 · 7.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.2%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · microsoft
7.5
NVD has not scored this yet; the score shown is the CNA’s.

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N/E:U/RL:O/RC:C

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2026-114157

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

—

Versions reported by the vendor

Affected version ranges reported by the assigning authority (microsoft). Independent of NVD's CPE analysis and usually ahead of it.

  • Microsoft .NET 10.0 installed on Windows

    • 10.0.0 and later · before 10.0.15affected

  • Microsoft .NET 11.0 installed on Windows

    • 11.0.0-preview.1 and later · before 11.0.0affected

  • Microsoft .NET 8.0 installed on Windows

    • 8.0.0 and later · before 8.0.34affected

  • Microsoft .NET 9.0 installed on Windows

    • 9.0.0 and later · before 9.0.23affected

  • Microsoft Microsoft Visual Studio 2022 version 17.14

    • 17.14.0 and later · before 17.14.45affected

  • Microsoft Microsoft Visual Studio 2026 version 18.11

    • 18.11.0 and later · before 18.11.4affected

  • Microsoft Microsoft Visual Studio 2026 version 18.12

    • 18.12.0 and later · before 18.12.0affected

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
NuGetMicrosoft.AspNetCore.App.Runtime.win-arm64from 10.0.0-preview.1.25120.3 · before 10.0.1510.0.15
NuGetMicrosoft.AspNetCore.App.Runtime.win-arm64from 11.0.0-preview.1.26104.118 · before 11.0.011.0.0
NuGetMicrosoft.AspNetCore.App.Runtime.win-arm64from 8.0.0-preview.1.23112.2 · before 8.0.348.0.34
NuGetMicrosoft.AspNetCore.App.Runtime.win-arm64from 9.0.0-preview.1.24081.5 · before 9.0.239.0.23
NuGetMicrosoft.AspNetCore.App.Runtime.win-x64from 10.0.0-preview.1.25120.3 · before 10.0.1510.0.15
NuGetMicrosoft.AspNetCore.App.Runtime.win-x64from 11.0.0-preview.1.26104.118 · before 11.0.011.0.0
NuGetMicrosoft.AspNetCore.App.Runtime.win-x64from 8.0.0-preview.1.23112.2 · before 8.0.348.0.34
NuGetMicrosoft.AspNetCore.App.Runtime.win-x64from 9.0.0-preview.1.24081.5 · before 9.0.239.0.23
NuGetMicrosoft.AspNetCore.App.Runtime.win-x86from 10.0.0-preview.1.25120.3 · before 10.0.1510.0.15
NuGetMicrosoft.AspNetCore.App.Runtime.win-x86from 11.0.0-preview.1.26104.118 · before 11.0.011.0.0
NuGetMicrosoft.AspNetCore.App.Runtime.win-x86from 8.0.0-preview.1.23112.2 · before 8.0.348.0.34
NuGetMicrosoft.AspNetCore.App.Runtime.win-x86from 9.0.0-preview.1.24081.5 · before 9.0.239.0.23

Same product

microsoft: all records

Other highest-scoring records for the same primary product.

Published before and after this one in the same product

  • ← EarlierCVE-2026-114151Nov 10, 2026 · Visual Studio Remote Code Execution Vulnerability
    35Monitor
  • ← EarlierCVE-2026-114152Nov 10, 2026 · Visual Studio Remote Code Execution Vulnerability
    35Monitor
  • ← EarlierCVE-2026-114154Nov 10, 2026 · ASP.NET Core Denial of Service Vulnerability
    30Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
.NET 10.0 installed on Windows10.0.15 · KB5135241Microsoft (MSRC)
.NET 11.0 installed on Windows11.0.0 · Release NotesMicrosoft (MSRC)
.NET 8.0 installed on Windows8.0.34 · KB5135243Microsoft (MSRC)
.NET 9.0 installed on Windows9.0.23 · KB5135242Microsoft (MSRC)
Microsoft Visual Studio 2022 version 17.1417.14.45 · Release NotesMicrosoft (MSRC)
Microsoft Visual Studio 2026 version 18.1118.11.4 · Release NotesMicrosoft (MSRC)
Microsoft Visual Studio 2026 version 18.1218.12.0 · Release NotesMicrosoft (MSRC)
NuGet:Microsoft.AspNetCore.App.Runtime.win-arm6410.0.15Package registry (OSV)
NuGet:Microsoft.AspNetCore.App.Runtime.win-arm6411.0.0Package registry (OSV)
NuGet:Microsoft.AspNetCore.App.Runtime.win-arm648.0.34Package registry (OSV)
NuGet:Microsoft.AspNetCore.App.Runtime.win-arm649.0.23Package registry (OSV)
NuGet:Microsoft.AspNetCore.App.Runtime.win-x6410.0.15Package registry (OSV)
NuGet:Microsoft.AspNetCore.App.Runtime.win-x6411.0.0Package registry (OSV)
NuGet:Microsoft.AspNetCore.App.Runtime.win-x648.0.34Package registry (OSV)
NuGet:Microsoft.AspNetCore.App.Runtime.win-x649.0.23Package registry (OSV)
NuGet:Microsoft.AspNetCore.App.Runtime.win-x8610.0.15Package registry (OSV)
NuGet:Microsoft.AspNetCore.App.Runtime.win-x8611.0.0Package registry (OSV)
NuGet:Microsoft.AspNetCore.App.Runtime.win-x868.0.34Package registry (OSV)
NuGet:Microsoft.AspNetCore.App.Runtime.win-x869.0.23Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

  1. Published
  2. Fix recordedsame day
  3. TodayNov 12, 2026+2 d
EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Not on record for this CVE: patch commit or PR link · researcher credit · variant or chain candidate · public bounty program.

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • Special conditions such as timing or configuration are required.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
none

Impact can extend beyond the vulnerable component (scope changes).

Attack vector
Local
Attack complexity
High
Privileges required
Low
User interaction
None
Scope
Changed
Confidentiality impact
High
Integrity impact
High
Availability impact
None

Weakness class (CWE)

CWE-362 · Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CVSS vector

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

nvd-secondary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

Change log

  1. Fix✗ → ✓
  2. SSVC exploitation— → none
  3. Exploit maturity— → none

For records you follow, these changes also arrive as notifications. →

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records