CVE-2021-3705
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 · uneditedPotential security vulnerabilities have been discovered on a certain HP LaserJet Pro printer that may allow an unauthorized user to reconfigure, reset the device.
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 confidenceThe vulnerability in certain HP LaserJet Pro printers allows an unauthenticated attacker to reconfigure or reset the device, likely through an authentication bypass or improper access control in the printer's web interface or network services. The CVSS 9.8 score indicates trivial exploitation with no user interaction required.
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>= 20210810>= 20210810CVSS 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 checksWork through these to decide whether this CVE applies to you.
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Identify printer model numberCheck the product label on the printer or access the printer's web interface/status page to confirm the model number is J8h61a or J8h60aAffected if The printer model is LaserJet Pro J8h61a or J8h60a
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Check installed firmware versionAccess the printer's embedded web server (EWS) via browser at the printer's IP address, then navigate to the General or Information tab to view the firmware date/version. Alternatively, print a configuration page from the printer control panel.Affected if The firmware version date is 20210810 or later
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Verify remote management accessibilityAttempt to access the printer's web interface from an untrusted network or use nmap to scan for open HTTP/HTTPS ports (typically 80/443 or 8080) on the printer's IP addressAffected if The printer's web administration interface is accessible from untrusted networks without network segmentation
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Confirm network exposureCheck if the printer IP is on a VLAN or network segment accessible to guest or untrusted users, or if firewall rules permit direct access to printer management ports from outside the local networkAffected if The printer management interface is reachable from networks other than a trusted admin network
The environment is affected if the printer is a LaserJet Pro J8h61a or J8h60a model running firmware version 20210810 or later AND its web interface is accessible from untrusted network segments.
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.
From vendor dataApply available HP firmware updates for affected LaserJet Pro models; if no patch exists, disable remote management interfaces, enforce network segmentation, and restrict access to printer administration functions.
- Consultation2.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,800.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2021-3705 — 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-2021-3705 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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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.
- 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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