CVE-2022-48471
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 · uneditedThere is a misinterpretation of input vulnerability in Huawei Printer. Successful exploitation of this vulnerability may cause the printer service to be abnormal.
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 confidenceThis is an input misinterpretation vulnerability in Huawei Printer devices. The vulnerability allows attackers to send specially crafted input that the printer misinterprets, causing the printer service to become abnormal (denial of service). The CVSS 7.5 indicates high severity with network-exploitable scope.
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= 3.0.0.325CVSS 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 checksWork through these to decide whether this CVE applies to you.
-
Identify Huawei Bisheng Wnm printers on the networkScan your network inventory or use network discovery tools (nmap, asset management) to locate Huawei printer devices. Look for devices with manufacturer 'Huawei' and product name or model indicating 'Bisheng' or 'Wnm'. Check DHCP lease tables, asset databases, or physically inspect devices.Affected if Any Huawei Bisheng Wnm series printer is found on the network
-
Check the firmware versionAccess the printer web management interface (typically http://<printer-ip>) or use SNMP/LLMNR queries to retrieve the firmware version. Navigate to System Settings, About, or Status pages. Alternatively, check via printer control panel if available.Affected if The installed firmware version is exactly 3.0.0.325
-
Verify network accessibility of the printer servicePerform a port scan (nmap -p 80,443,631,9100 <printer-ip>) to confirm the printer HTTP or print service ports are reachable from network segments. Check firewall rules and VLAN configurations that allow access to the printer.Affected if The printer service ports are exposed to untrusted network segments (e.g., guest networks, internet-facing interfaces)
-
Check for service anomaliesReview printer logs through the web interface or syslog exports for error messages indicating service crashes, input processing failures, or abnormal termination. Look for repeated restarts or 'service abnormal' entries.Affected if Recent logs show printer service instability or crashes that align with the timeline of CVE-2022-48471 disclosure (March 2023)
You are affected if you have a Huawei Bisheng Wnm printer with firmware version 3.0.0.325 that is network-accessible and potentially showing service anomalies.
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 dataRestrict network access to printer devices, implement firewall rules limiting exposure, and monitor Huawei support channels for firmware updates addressing this input validation issue.
- 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-2022-48471 — 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-2022-48471 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
Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.
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
- No spam, self-promotion, credentials, or personal data