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Improper Access ControlWeakness · CWE-284

CVE-2025-24323

MEDIUM · 6.5 CVSS v3.1 Published 2025-08-12
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
65/100
Remediation priority · Elevated

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
Improper access control in some firmware package and LED mode toggle tool for some Intel(R) PCIe Switch software before version MR4_1.0b1 may allow a privileged user to potentially enable escalation of privilege via local access.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · high confidence

This vulnerability exists in Intel(R) PCIe Switch software firmware and LED mode toggle tool versions prior to MR4_1.0b1. The improper access control allows a privileged user to escalate their privileges locally, potentially gaining higher-level system access than intended.

MitigationUpdate the Intel PCIe Switch software to version MR4_1.0b1 or later to obtain the patched firmware and LED mode toggle tool.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Local
Complexity
Low
Privileges
High
User interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify Intel PCIe Switch software installation
    Locate the Intel PCIe Switch software or firmware on the system. This is typically deployed on Intel PCIe switch hardware or as a management tool. Check system inventory, installed software lists, or firmware directories for components named 'Intel PCIe Switch', 'Intel PCIe', or related firmware packages.
    Affected if The Intel PCIe Switch software or firmware is present on the system
  2. Determine firmware version
    Access the PCIe switch management interface or firmware version reporting tool. Common methods include: CLI command 'show version' or 'firmware version', BMC/IPMI interface, or firmware file metadata. Extract the numeric version string (e.g., MR4_1.0a2, MR3_2.5b).
    Affected if The firmware version is present and is earlier than MR4_1.0b1 (such as MR4_1.0a, MR3_x, or earlier releases)
  3. Determine LED mode toggle tool version
    Locate the LED mode toggle tool binary or module within the Intel PCIe Switch software package. Check installation directories for tools named 'ledmode', 'ledtoggle', or similar. Retrieve the tool version using 'toolname --version', 'toolname -v', or checking file properties.
    Affected if The LED mode toggle tool version is present and is earlier than MR4_1.0b1
  4. Verify privileged user access exists
    Check if the system has user accounts with elevated or administrative privileges that can access the PCIe switch management functions. Review user group memberships (administrators, root, sudo, or vendor-specific privilege groups) and access control configurations for the LED mode toggle tool.
    Affected if Privileged user accounts exist and have access to the LED mode toggle tool functionality
  5. Compare against vulnerable version threshold
    Review all identified versions (firmware and LED mode toggle tool) against the vulnerable threshold: any version prior to MR4_1.0b1 is affected. Create a version comparison treating MR4_1.0b1 as the safe threshold; versions below this (including MR4_1.0a versions, MR3 series, and earlier) are vulnerable.
    Affected if Either the firmware version or LED mode toggle tool version is earlier than MR4_1.0b1

The environment is affected if Intel PCIe Switch software firmware or LED mode toggle tool is installed with any version prior to MR4_1.0b1 and privileged users have access to the LED mode toggle functionality.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Update the Intel PCIe Switch software to version MR4_1.0b1 or later to obtain the patched firmware and LED mode toggle tool.

Recommended fix Moderate confidence

Intel(R) PCIe Switch software version MR4_1.0b1

  1. Locate the Intel(R) PCIe Switch software installation in your environment
  2. Obtain the MR4_1.0b1 release of Intel(R) PCIe Switch software from Intel's official support channels
  3. Review Intel's release notes for MR4_1.0b1 to understand any changes or requirements
  4. Plan maintenance window as upgrades to firmware and LED mode toggle tools may require system downtime
  5. Backup current configuration before performing the upgrade
  6. Apply the MR4_1.0b1 firmware package update following Intel's documentation
  7. Apply the MR4_1.0b1 LED mode toggle tool update following Intel's documentation
  8. Verify the installation was successful and the software is running version MR4_1.0b1
Caveat Consult Intel advisory for specific upgrade considerations; firmware updates may have specific compatibility requirements

Generated from the published advisory — verify against the referenced sources before acting.

Have this fixed Scoped from the published advisory
  • Consultation2.0 h
  • Implementation4.0 h
  • Testing2.0 h
  • Review / QA1.0 h
9.0 hours of engineering $1,600
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2025-24323 in production — separate from our analysis above.

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
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  • Version or environment caveats, and links to real fixes
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