CVE-2019-6318
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 · uneditedHP LaserJet Enterprise printers, HP PageWide Enterprise printers, HP LaserJet Managed printers, HP Officejet Enterprise printers have an insufficient solution bundle signature validation that potentially allows execution of arbitrary code.
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 confidenceHP enterprise printer models contain an insufficient signature validation flaw in their solution bundle installation mechanism. Attackers could potentially craft malicious solution bundle files that bypass cryptographic signature checks, allowing arbitrary code execution within the printer firmware context.
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< 2309010_581401< 2309010_581402< 2309010_581409< 2309010_581409< 2407081_00060< 2309010_581409< 2407081_000601< 2309010_581418< 2407081_000585< 2309010_581418< 2407081_000585< 2407081_000586CVSS 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:3.0/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 checksWork through these to decide whether this CVE applies to you.
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Identify printer modelAccess the printer web interface (typical IP address on local network) or check the device label/physical display to confirm the exact model (e.g., HP Color LaserJet Enterprise M553)Affected if Model is not one of: CM4540 MFP, CP5525, M553, M552, Managed M553, M651, Managed M651, or M652 (these are unaffected)
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Retrieve firmware versionIn the printer web interface, navigate to the 'General' or 'Information' page (or use SNMP GET request for OID 1.3.6.1.2.1.43.5.1.1.16.1) to obtain the installed firmware version stringAffected if Unable to retrieve firmware version from the device
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Compare firmware version against affected rangesCompare the retrieved firmware version to the vulnerable versions: CM4540 MFP < 2309010_581401, CP5525 < 2309010_581402, M553 < 2309010_581409, M552 < 2309010_581409 or < 2407081_00060, Managed M553 < 2309010_581409 or < 2407081_000601, M651/Managed M651 < 2309010_581418 or < 2407081_000585, M652 < 2407081_000586Affected if Installed version is lower than any applicable threshold for your specific model (version numbers are text strings; numerical comparison applies to each segment)
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Check solution bundle installation feature statusIn the printer web interface, locate the 'Solutions' or 'Solution Bundles' configuration section under 'Security' or 'General Settings' to verify whether solution bundle installation is enabledAffected if Solution bundle installation feature is currently enabled (this is the attack surface that must be present for exploitation)
Your environment is affected if you have one of the listed HP Color LaserJet models running firmware version below the threshold AND the solution bundle installation feature is enabled.
Generated from the published advisory. Verify against your own configuration.
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 · scoped2309010_5814012309010_5814022309010_581409
Apply HP firmware updates addressing this vulnerability when released; until then, restrict printer network accessibility, disable unused solution bundle installation features, and monitor for unauthorized bundle installations.
Firmware version >= 2309010_581401 (Cm4540 Mfp), >= 2309010_581402 (Cp5525), >= 2309010_581409 (M553/M552/Managed M553), >= 2309010_581418 (M651/Managed M651), >= 2407081_000586 (M652), or later stable releases
- 1. Identify the exact current firmware version of the affected HP printer by printing a configuration page or accessing the printer's embedded web server (EWS)
- 2. Navigate to the HP Support website (support.hp.com) and locate the firmware download section for your specific printer model
- 3. Download the latest available firmware version for the affected printer model
- 4. Access the printer's EWS (typically at https://<printer-ip-address>), navigate to the General or Firmware Update section
- 5. Upload and install the downloaded firmware file
- 6. Verify the firmware installation was successful by checking the new firmware version matches the installed version
- 7. For managed printer environments, use HP Web Jetadmin or similar tools to deploy firmware updates across multiple devices
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation4.0 h
- Implementation8.0 h
- Testing4.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2019-6318 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2019-6318 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- 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
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