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CWE-428Weakness · CWE-428

CVE-2026-8864

HIGH · 7.3 CVSS v4.0 Published 2026-06-30
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
75/100
Remediation priority · High
Zero-click 8 weeks old

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
The HP Fan Control App might allow local escalation of privileges. An updated version of HP Fan Control App has been released to mitigate this potential vulnerability.

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 · moderate confidence

The HP Fan Control App contains a local privilege escalation vulnerability (CVSS 7.3). An attacker with local access to the system could potentially exploit this to gain elevated privileges beyond their current user context. The specific vulnerability mechanism is not detailed in available documentation.

MitigationUpdate HP Fan Control App to the latest patched version released by HP to address this privilege escalation vulnerability.

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
Low
Authentication
X
User interaction
None
Scope
X

CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

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. Verify HP Fan Control App is installed
    Search for HP Fan Control App in system installed programs. On Windows, check Programs and Features or run: Get-ItemProperty HKLM:\Software\Microsoft\Windows\CurrentVersion\Uninstall\* | Where-Object {$_.DisplayName -like '*HP*Fan*Control*'}. On Linux, check package manager: dpkg -l | grep -i hp or rpm -qa | grep -i hp
    Affected if HP Fan Control App is found installed on the system
  2. Identify installed version
    Retrieve the version of HP Fan Control App. On Windows, run: (Get-ItemProperty HKLM:\Software\Microsoft\Windows\CurrentVersion\Uninstall\* | Where-Object {$_.DisplayName -like '*HP*Fan*Control*'}).DisplayVersion. On Linux, check with: dpkg -l | grep -i hp or rpm -qa | grep -i hp to see version strings
    Affected if Version number is returned and can be compared to patched version
  3. Determine if version is unpatched
    Compare the installed version against the latest patched version released by HP. Since specific version ranges are not provided, obtain the current patched version from HP support resources and compare: if installed version is lower than the patched version, it may be vulnerable
    Affected if Installed version is earlier than the latest HP-released patched version
  4. Check application execution context
    Examine how HP Fan Control App runs. Check for scheduled tasks: Get-ScheduledTask | Where-Object {$_.TaskPath -like '*HP*Fan*Control*'} or check services: Get-Service | Where-Object {$_.DisplayName -like '*HP*Fan*Control*'}. Review if it runs with elevated privileges or under system account
    Affected if App runs with elevated privileges or under a privileged service account context
  5. Inspect for vulnerable configuration
    Review application configuration files in the HP Fan Control App installation directory (commonly in Program Files or Program Files (x86) under HP or Hewlett-Packard folder). Check for misconfigured permissions on executable files or configuration that allows privilege escalation
    Affected if Configuration files show weak permissions or the app has writable executable paths accessible to non-admin users

A system is affected if HP Fan Control App is installed and runs with a version earlier than the latest patched version released by HP, or if the application runs with elevated privileges and has accessible vulnerable configuration.

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.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Update HP Fan Control App to the latest patched version released by HP to address this privilege escalation vulnerability.

Have this fixed Scoped from the published advisory
  • Consultation1.0 h
  • Implementation1.0 h
  • Testing2.0 h
  • Review / QA1.0 h
5.0 hours of engineering $860
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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-2026-8864 in production — separate from our analysis above.

No notes yet

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What this is

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