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4ra85f FirmwareOperating system · Hp

CVE-2025-26506

CRITICAL · 9.8 CVSS v3.1 Published 2025-02-14
Fix available
A fix is available. Upgrade to 6.17.5.34-202412122146 or later.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable No privileges Zero-click

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
Certain HP LaserJet Pro, HP LaserJet Enterprise, and HP LaserJet Managed Printers may potentially be vulnerable to Remote Code Execution and Elevation of Privilege when processing a PostScript print job.

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

HP LaserJet printers fail to properly validate or sanitize PostScript data in print jobs, allowing a remote attacker to execute arbitrary code and escalate privileges on the affected device by sending specially crafted PostScript content.

MitigationApply HP firmware updates when available, and consider disabling PostScript printing or implementing print job validation if supported on affected models.

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

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
4ra85f FirmwareOperating system
Affected:< 6.17.5.34-202412122146
4ra85v FirmwareOperating system
Affected:< 6.17.5.34-202412122146
4ra86a FirmwareOperating system
Affected:< 6.17.5.34-202412122146
4ra86e FirmwareOperating system
Affected:< 6.17.5.34-202412122146
4ra86f FirmwareOperating system
Affected:< 6.17.5.34-202412122146
4ra87a FirmwareOperating system
Affected:< 6.17.5.34-202412122146
4ra87e FirmwareOperating system
Affected:< 6.17.5.34-202412122146
4ra87f FirmwareOperating system
Affected:< 6.17.5.34-202412122146

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
Network
Complexity
Low
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/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 your HP LaserJet model
    Check the printer's control panel display, the configuration/status page printed from the device, or access the embedded web server at the printer's IP address to view the device information page.
    Affected if The model number matches one of the following: 4ra85f, 4ra85v, 4ra86a, 4ra86e, 4ra86f, 4ra87a, 4ra87e, or 4ra87f.
  2. Retrieve the firmware version
    From the printer's embedded web server (EWS) go to the General or Information page, or print a configuration/status page from the control panel. Look for the firmware version field.
    Affected if The installed firmware version is earlier than 6.17.5.34-202412122146.
  3. Confirm PostScript printing is enabled
    Access the printer's EWS, navigate to the Print Settings or Language settings section. Look for PostScript or PCL settings. Alternatively, check the printed configuration page for the default printer language or installed languages.
    Affected if PostScript is listed as an enabled or available printer language.

You are affected if your HP LaserJet model is one of the listed variants AND the installed firmware version is below 6.17.5.34-202412122146 AND PostScript printing is enabled or used.

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
Upgrade available Upgrade to 6.17.5.34-202412122146 or later
Fixed in 6.17.5.34-202412122146
Interim mitigation

Apply HP firmware updates when available, and consider disabling PostScript printing or implementing print job validation if supported on affected models.

Recommended fix High confidence

Firmware version 6.17.5.34-202412122146 or later

  1. Navigate to HP support website (support.hp.com) and locate the firmware download section for your specific HP LaserJet model
  2. Download the firmware update version 6.17.5.34-202412122146 or later for your printer model
  3. Open a web browser and access the printer's embedded web server (EWS) by entering the printer's IP address
  4. Log into the EWS with administrator credentials
  5. Navigate to the 'General' or 'Firmware Update' tab within the EWS
  6. Click on 'Browse' or 'Choose File' and select the downloaded firmware file
  7. Initiate the firmware upgrade process and wait for it to complete - do not power off the printer during the update
  8. After the update completes, verify the firmware version in the printer's information or status page

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

Fix this in 4ra85f Firmware Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing4.0 h
  • Review / QA2.0 h
18.0 hours of engineering $3,200
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $5,120.

Scan for this in your stack

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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-2025-26506 in production — separate from our analysis above.

No notes yet

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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
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data