CVE-2026-114148

ASP.NET Core Elevation of Privilege Vulnerability

Products / packages Microsoft .NET 10.0 installed on Linux · Microsoft .NET 10.0 installed on Mac OS · Microsoft .NET 10.0 installed on Windows · 11 more

Published 29/10/2026, 15:21:47 UTC

Severity and exploitation

Not in CISA KEV

KEV coverage does not rule out exploitation.

KEV checked 14/11/2026, 22:45:30 UTC

microsoft · CVSS:3.1 · 7.8

Assessment vector

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

Severity

high7.8

CVSS measures technical severity, not the likelihood of an attack.

Known exploitation

Not listed in the checked CISA KEV catalog

Absence from CISA KEV does not rule out attacks.

Public exploit

Not established by this record

Missing evidence does not mean no public exploit exists.

Remediation

Fix status not established

No structured fix or guidance is available here. Check the latest publisher advisory.

What this means

ASP.NET Core has an elevation of privilege vulnerability due to incorrect default permissions, affecting .NET versions 8.0 to 11.0 on various platforms. An authorized attacker can exploit this locally. The weakness is identified as CWE-276: Incorrect Default Permissions.

Summarized by @cf/meta/llama-3.3-70b-instruct-fp8-fast. Verify details against the original sources.

Attack conditions

No attack-condition excerpt has been identified here. Review the full source description and references for authentication, network access, and configuration requirements.

Review supporting sources →

Affected versions

Check the exact model, release, and any platform requirements against your installation.

Microsoft · microsoft

.NET 10.0 installed on Linux

1 range

microsoft version evidence

Check a product version

Compare with this publisher’s ranges. This does not inspect your installation.

affected

10.0.0 → before 10.0.403

custom versions

Other versions: unknown

Microsoft · microsoft

.NET 10.0 installed on Mac OS

1 range

microsoft version evidence

Check a product version

Compare with this publisher’s ranges. This does not inspect your installation.

affected

10.0.0 → before 10.0.403

custom versions

Other versions: unknown

Microsoft · microsoft

.NET 10.0 installed on Windows

1 range

microsoft version evidence

Check a product version

Compare with this publisher’s ranges. This does not inspect your installation.

affected

10.0.0 → before 10.0.403

custom versions

Other versions: unknown

Microsoft · microsoft

.NET 11.0 installed on Linux

1 range

microsoft version evidence

Check a product version

Compare with this publisher’s ranges. This does not inspect your installation.

affected

11.0.0-preview.1 → before 11.0.100-rc.3

custom versions

Other versions: unknown

Microsoft · microsoft

.NET 11.0 installed on Mac OS

1 range

microsoft version evidence

Check a product version

Compare with this publisher’s ranges. This does not inspect your installation.

affected

11.0.0-preview.1 → before 11.0.100-rc.3

custom versions

Other versions: unknown

Microsoft · microsoft

.NET 11.0 installed on Windows

1 range

microsoft version evidence

Check a product version

Compare with this publisher’s ranges. This does not inspect your installation.

affected

11.0.0-preview.1 → before 11.0.100-rc.3

custom versions

Other versions: unknown

Microsoft · microsoft

.NET 8.0 installed on Linux

1 range

microsoft version evidence

Check a product version

Compare with this publisher’s ranges. This does not inspect your installation.

affected

8.0.0 → before 8.0.427

custom versions

Other versions: unknown

Microsoft · microsoft

.NET 8.0 installed on Mac OS

1 range

microsoft version evidence

Check a product version

Compare with this publisher’s ranges. This does not inspect your installation.

affected

8.0.0 → before 8.0.427

custom versions

Other versions: unknown

Microsoft · microsoft

.NET 8.0 installed on Windows

1 range

microsoft version evidence

Check a product version

Compare with this publisher’s ranges. This does not inspect your installation.

affected

8.0.0 → before 8.0.427

custom versions

Other versions: unknown

Microsoft · microsoft

.NET 9.0 installed on Linux

1 range

microsoft version evidence

Check a product version

Compare with this publisher’s ranges. This does not inspect your installation.

affected

9.0.0 → before 9.0.320

custom versions

Other versions: unknown

Microsoft · microsoft

.NET 9.0 installed on Mac OS

1 range

microsoft version evidence

Check a product version

Compare with this publisher’s ranges. This does not inspect your installation.

affected

9.0.0 → before 9.0.320

custom versions

Other versions: unknown

Microsoft · microsoft

.NET 9.0 installed on Windows

1 range

microsoft version evidence

Check a product version

Compare with this publisher’s ranges. This does not inspect your installation.

affected

9.0.0 → before 9.0.320

custom versions

Other versions: unknown

Microsoft · microsoft

.NET source-build Linux tarballs (all archive types)

1 range

microsoft version evidence

Check a product version

Compare with this publisher’s ranges. This does not inspect your installation.

affected

8.0.100 → before 10.0.403-servicing.26523.112

custom versions

Other versions: unknown

Microsoft · microsoft

ASP.NET Core runtime and targeting-pack Linux tarballs (Microsoft-published)

1 range

microsoft version evidence

Check a product version

Compare with this publisher’s ranges. This does not inspect your installation.

affected

8.0.0 → before 9.0.22

custom versions

Other versions: unknown

Automatic dependency matching is unavailable for this record. Use the product evidence and publisher’s instructions to check your installation.

What to do

Compare your installed product and version with the affected versions above. A matching product name alone does not confirm exposure.

No structured fix or remediation guidance is available here. Check the full source description and vendor’s latest advisory for a patch or workaround; do not assume another version is safe.

cve.new guidance unless attributed to a publisher. This page does not inspect your installation.

Public exploit evidence

No public exploit reference is identified in the imported evidence. This is not a claim that no exploit exists.

Original source description

Read the full publisher description

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

References

1 sources

msrc.microsoft.com/update-guide/vulnerability/CVE-2026-114148

Vendor advisorymicrosoft

Inside the record

Evidence available

Package identity · not supplied

Version evidence

Remediation guidance · not supplied

Weakness classification

Additional publishers

Describes the evidence in this view, not whether the product is safe.

Original records

CVE-2026-114148

View the latest unmodified CVE JSON from the official source. It may be newer than this imported page.

cve.new JSON →

Underlying weaknesses

The source’s classification of what caused the vulnerability.

CWE-276 ↗

CWE-276: Incorrect Default Permissions

microsoft

Environment requirements

These conditions apply together as specified by the publisher. A matching product name alone does not establish exposure.

microsoft · platform conditions

Any condition may hold

Vulnerable product

cpe:2.3:a:microsoft:.net_8.0_installed_on_windows:*:*:*:*:*:*:*:*

From (inclusive): 8.0.0

After:

Through (inclusive):

Before: 8.0.427

Vulnerable product

cpe:2.3:a:microsoft:.net_8.0_installed_on_linux:*:*:*:*:*:*:*:*

From (inclusive): 8.0.0

After:

Through (inclusive):

Before: 8.0.427

Vulnerable product

cpe:2.3:a:microsoft:.net_8.0_installed_on_mac_os:*:*:*:*:*:*:*:*

From (inclusive): 8.0.0

After:

Through (inclusive):

Before: 8.0.427

Vulnerable product

cpe:2.3:a:microsoft:.net_9.0_installed_on_windows:*:*:*:*:*:*:*:*

From (inclusive): 9.0.0

After:

Through (inclusive):

Before: 9.0.320

Vulnerable product

cpe:2.3:a:microsoft:.net_9.0_installed_on_linux:*:*:*:*:*:*:*:*

From (inclusive): 9.0.0

After:

Through (inclusive):

Before: 9.0.320

Vulnerable product

cpe:2.3:a:microsoft:.net_9.0_installed_on_mac_os:*:*:*:*:*:*:*:*

From (inclusive): 9.0.0

After:

Through (inclusive):

Before: 9.0.320

Vulnerable product

cpe:2.3:a:microsoft:.net_10.0_installed_on_windows:*:*:*:*:*:*:*:*

From (inclusive): 10.0.0

After:

Through (inclusive):

Before: 10.0.403

Vulnerable product

cpe:2.3:a:microsoft:.net_10.0_installed_on_linux:*:*:*:*:*:*:*:*

From (inclusive): 10.0.0

After:

Through (inclusive):

Before: 10.0.403

Vulnerable product

cpe:2.3:a:microsoft:.net_10.0_installed_on_mac_os:*:*:*:*:*:*:*:*

From (inclusive): 10.0.0

After:

Through (inclusive):

Before: 10.0.403

Vulnerable product

cpe:2.3:a:microsoft:.net_11.0_installed_on_windows:*:*:*:*:*:*:*:*

From (inclusive): 11.0.0-preview.1

After:

Through (inclusive):

Before: 11.0.100-rc.3

Vulnerable product

cpe:2.3:a:microsoft:.net_11.0_installed_on_linux:*:*:*:*:*:*:*:*

From (inclusive): 11.0.0-preview.1

After:

Through (inclusive):

Before: 11.0.100-rc.3

Vulnerable product

cpe:2.3:a:microsoft:.net_11.0_installed_on_mac_os:*:*:*:*:*:*:*:*

From (inclusive): 11.0.0-preview.1

After:

Through (inclusive):

Before: 11.0.100-rc.3

Vulnerable product

cpe:2.3:a:microsoft:asp_net_core_runtime_and_targeting-pack_linux_tarballs_microsoft_published:*:*:*:*:*:*:*:*

From (inclusive): 8.0.0

After:

Through (inclusive):

Before: 9.0.22

Vulnerable product

cpe:2.3:a:microsoft:.net_source-build_linux_tarballs_all_archive_types:*:*:*:*:*:*:*:*

From (inclusive): 8.0.100

After:

Through (inclusive):

Before: 10.0.403-servicing.26523.112

Applicability preview

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    "nodes": [
      {
        "operator": "OR",
        "negate": false,
        "cpeMatch": [
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            "vulnerable": true,
            "criteria": "cpe:2.3:a:microsoft:.net_8.0_installed_on_windows:*:*:*:*:*:*:*:*",
            "versionStartIncluding": "8.0.0",
            "versionEndExcluding": "8.0.427"
          },
          {
            "vulnerable": true,
            "criteria": "cpe:2.3:a:microsoft:.net_8.0_installed_on_linux:*:*:*:*:*:*:*:*",
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            "versionStartIncluding": "10.0.0",
            "versionEndExcluding": "10.0.403"
          },
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            "vulnerable": true,
            "criteria": "cpe:2.3:a:microsoft:.net_10.0_installed_on_mac_os:*:*:*:*:*:*:*:*",
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          },
          {
            "vulnerable": true,
            "criteria": "cpe:2.3:a:microsoft:.net_11.0_installed_on_windows:*:*:*:*:*:*:*:*",
            "versionStartIncluding": "11.0.0-preview.1",
            "versionEndExcluding": "11.0.100-rc.3"
          },
          {
            "vulnerable": true,
            "criteria": "cpe:2.3:a:microsoft:.net_11.0_installed_on_linux:*:*:*:*:*:*:*:*",
            "versionStartIncluding": "11.0.0-preview.1",
            "versionEndExcluding": "11.0.100-rc.3"
          },
          {
            "vulnerable": true,
            "criteria": "cpe:2.3:a:microsoft:.net_11.0_installed_on_mac_os:*:*:*:*:*:*:*:*",
            "versionStartIncluding": "11.0.0-preview.1",
            "versionEndExcluding": "11.0.100-rc.3"
          },
          {
            "vulnerable": true,
            "criteria": "cpe:2.3:a:microsoft:asp_net_core_runtime_and_targeting-pack_linux_tarballs_microsoft_published:*:*:*:*:*:*:*:*",
            "versionStartIncluding": "8.0.0",
            "versionEndExcluding": "9.0.22"
          },
          {
            "vulnerable": true,
            "criteria": "cpe:2.3:a:microsoft:.net_source-build_linux_tarballs_all_archive_types:*:*:*:*:*:*:*:*",
            "versionStartIncluding": "8.0.100",
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Contributing organizations · 2

microsoft

Assigning organization

2026-11-10

CISA-ADP

Additional data publisher

2026-10-30

Timeline

All times UTC

29 Oct 2026, 15:21
Advisory published
Publication date supplied by the source.
10 Nov 2026, 20:47
Source updated
Latest modification date supplied by the source.
10 Nov 2026, 21:05
Last imported by cve.new
Latest catalog import, not the date we first saw this advisory.

What changed

Follow changes

CVE · CVE-2026-1141482026-10-30

Observed 2026-10-30T15:33:25.805Z · upstream updated 2026-10-30T13:46:52.704Z

Prioritization updated

before

[]

after

[
  {
    "source": "CISA-ADP",
    "type": "SSVC",
    "role": "CISA Coordinator",
    "timestamp": "2026-10-30T13:38:21.442156Z",
    "decisions": [
      {
        "name": "Exploitation",
        "value": "none"
      },
      {
        "name": "Automatable",
        "value": "no"
      },
      {
        "name": "Technical Impact",
        "value": "total"
      }
    ]
  }
]

Large field values are marked as truncated previews. Original source snapshots remain retained.

Showing up to 50 most recent observed changes.

Reading the signals

Severity · CVSS: Technical impact and attack conditions. The headline is the highest imported catalog score; sources may disagree.
Observed exploitation · KEV: An absent or unavailable KEV listing does not establish that exploitation has not occurred.
Predicted exploitation · EPSS: 0.36% estimated probability in the next 30 days. 2026-10-30 · FIRST EPSS.

CISA-ADP · SSVC

CISA Coordinator · 2026-10-30

Exploitation: none
Automatable: no
Technical Impact: total

SSVC describes the publisher’s decision context. Your organization’s exposure and priorities may differ.

Record identifiers

Aliases: None recorded

Source evidence

Request a correction or dispute

Start with the assigning organization for this record. Include the CVE ID, the disputed information, and supporting evidence. A dispute does not itself reject a record.

Find the responsible CNA →Official dispute and escalation process ↗

CVE CVE-2026-114148

Enrichment coverage

NVDAvailable

Checked 30/10/2026, 15:45:37 UTC

GHSANo result

Checked 30/10/2026, 15:45:37 UTC

EUVDAvailable

Checked 30/10/2026, 15:45:37 UTC

EPSSAvailable

Checked 30/10/2026, 15:45:37 UTC

Additional source evidence

NVD · CVE-2026-114148

CVSS 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Checked 30/10/2026, 15:45:37 UTC

FIRST EPSS · CVE-2026-114148

EPSS 0.36% probability of exploitation in the next 30 days. Percentile: 29.19% · 2026-10-30

Checked 30/10/2026, 15:45:37 UTC

ENISA EUVD · EUVD-2026-113163

CVSS 7.8 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

Checked 30/10/2026, 15:45:37 UTC

Sponsored by MoxsoBuild security habits with adaptive training and phishing simulations.View as JSON

ASP.NET Core Elevation of Privilege Vulnerability

Severity and exploitation

What this means

Attack conditions

Affected versions

.NET 10.0 installed on Linux

affected

unaffected

unknown

.NET 10.0 installed on Mac OS

affected

unaffected

unknown

.NET 10.0 installed on Windows

affected

unaffected

unknown

.NET 11.0 installed on Linux

affected

unaffected

unknown

.NET 11.0 installed on Mac OS

affected

unaffected

unknown

.NET 11.0 installed on Windows

affected

unaffected

unknown

.NET 8.0 installed on Linux

affected

unaffected

unknown

.NET 8.0 installed on Mac OS

affected

unaffected

unknown

.NET 8.0 installed on Windows

affected

unaffected

unknown

.NET 9.0 installed on Linux

affected

unaffected

unknown

.NET 9.0 installed on Mac OS

affected

unaffected

unknown

.NET 9.0 installed on Windows

affected

unaffected

unknown

.NET source-build Linux tarballs (all archive types)

affected

unaffected

unknown

ASP.NET Core runtime and targeting-pack Linux tarballs (Microsoft-published)

affected

unaffected

unknown

What to do

Public exploit evidence

Original source description

References

Inside the record

Evidence available

Original records

Underlying weaknesses

Environment requirements

Timeline

Advisory published

Source updated

Last imported by cve.new

What changed