Laserjet Pro M304 M305 W1a46a FirmwareOperating system · Hp

CVE-2023-27972

CRITICAL · 9.8 CVSS v3.1 Developing Published 2023-04-28
Fix available
A fix is available. Upgrade to 002_2310a 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 print products are potentially vulnerable to Buffer Overflow and/or Remote Code Execution.

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 · low confidence
Developing — this CVE was published recently and its authoritative NVD entry is still being established, so we're holding a technical summary until the source data settles rather than publish something unreliable. Re-checking after 2026-07-31.

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
Laserjet Pro M304 M305 W1a46a FirmwareOperating system
Affected:< 002_2310a
Laserjet Pro M304 M305 W1a47a FirmwareOperating system
Affected:< 002_2310a
Laserjet Pro M304 M305 W1a48a FirmwareOperating system
Affected:< 002_2310a
Laserjet Pro M304 M305 W1a66a FirmwareOperating system
Affected:< 002_2310a
Laserjet Pro M404 M405 93m22a FirmwareOperating system
Affected:< 002_2310a
Laserjet Pro M404 M405 W1a51a FirmwareOperating system
Affected:< 002_2310a
Laserjet Pro M404 M405 W1a52a FirmwareOperating system
Affected:< 002_2310a
Laserjet Pro M404 M405 W1a53a FirmwareOperating system
Affected:< 002_2310a

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

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 002_2310a or later
Fixed in 002_2310a
Recommended fix High confidence

Firmware version 002_2310a or later

  1. Identify your specific HP LaserJet Pro model number and current firmware version via the printer's control panel or embedded web server
  2. Navigate to support.hp.com and enter your printer model to locate firmware downloads
  3. Download the latest firmware update (version 002_2310a or later) from HP's official support page
  4. Access the printer's embedded web server (EWS) via its IP address
  5. Locate the firmware upgrade or service section in EWS
  6. Upload and apply the downloaded firmware file
  7. Verify the firmware version has been updated successfully post-reboot
Caveat Firmware updates may temporarily interrupt printer availability; ensure print jobs are paused before upgrading

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

We can perform the upgrade in your staging environment and verify nothing breaks — typical engagement from $3,550. Get the upgrade done

Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2023-27972 — 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 sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2023-27972 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