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Cv81 Wdm FirmwareOperating system · Huawei

CVE-2022-34159

HIGH · 7.5 CVSS v3.1 Published 2024-12-20
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
84/100
Remediation priority · High
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
Huawei printers have an input verification vulnerability. Successful exploitation of this vulnerability may cause device service exceptions. (Vulnerability ID: HWPSIRT-2022-80078) This vulnerability has been assigned a Common Vulnerabilities and Exposures (CVE) ID: CVE-2022-34159.

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

This is an input validation vulnerability in Huawei printer devices. The vulnerability allows attackers to send specially crafted input to the printer that bypasses validation checks, potentially causing device service exceptions. The high CVSS score indicates the vulnerability is easily exploitable over the network with significant impact on device availability.

MitigationOrganizations should identify affected Huawei printer models in their environment, check for available firmware updates from Huawei, and apply patches when available. Until a patch is released, network segmentation and restricting printer access to trusted networks can reduce exposure.

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
Cv81 Wdm FirmwareOperating system
Affected:= 01.70.49.29.46

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
None
Integrity
None
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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 Huawei Cv81 Wdm printers on the network
    Use network scanning tools (such as nmap, Angry IP Scanner, or your network inventory system) to discover Huawei printer devices. Look for devices with 'Huawei' vendor identification and model indicator 'Cv81' or 'Wdm' in their SNMP, mDNS/Bonjour, or HTTP management interface responses.
    Affected if A Huawei Cv81 Wdm printer is found on the network.
  2. Locate the firmware version via printer web interface
    Access the printer's embedded web server by entering its IP address in a browser. Navigate to the 'Device Information', 'Status', or 'About' page (commonly found under 'Maintenance' or 'Settings' menus) to view the firmware version. If authentication is required, check the printer display panel for default credentials or consult your asset records.
    Affected if The firmware version displayed is 01.70.49.29.46.
  3. Check firmware version via SNMP
    Query the printer using SNMP: snmpwalk -v2c -c public <PRINTER_IP> or snmpget for OID .1.3.6.1.2.1.43.5.1.1.16.1 (prtMainConfigBitmap or similar). Use an SNMP tool such as snmpwalk, ManageEngine OpUtils, or SolarWinds IP Address Tracker.
    Affected if The SNMP response returns firmware version 01.70.49.29.46.
  4. Check firmware version via printer control panel display
    If the printer has an LCD control panel, navigate to the system information or settings menu (typically 'Menu' > 'Information' or 'System Settings' > 'Device Info') to view the installed firmware version directly on the device.
    Affected if The displayed firmware version is 01.70.49.29.46.

Your environment is affected if any Huawei Cv81 Wdm printer is found running firmware version exactly 01.70.49.29.46.

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

Organizations should identify affected Huawei printer models in their environment, check for available firmware updates from Huawei, and apply patches when available. Until a patch is released, network segmentation and restricting printer access to trusted networks can reduce exposure.

Fix this in Cv81 Wdm Firmware Scoped from the published advisory
  • Consultation8.0 h
  • Implementation12.0 h
  • Testing6.0 h
  • Review / QA4.0 h
30.0 hours of engineering $5,380
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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-2022-34159 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