CVE-2023-6229
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 · uneditedBuffer overflow in CPCA PDL Resource Download process of Office Multifunction Printers and Laser Printers(*) which may allow an attacker on the network segment to trigger the affected product being unresponsive or to execute arbitrary code.*: Satera LBP670C Series/Satera MF750C Series firmware v03.07 and earlier sold in Japan. Color imageCLASS LBP674C/Color imageCLASS X LBP1333C/Color imageCLASS MF750C Series/Color imageCLASS X MF1333C Series firmware v03.07 and earlier sold in US. i-SENSYS LBP673Cdw/C1333P/i-SENSYS MF750C Series/C1333i Series firmware v03.07 and earlier sold in Europe.
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 · high confidenceA buffer overflow vulnerability exists in the CPCA PDL Resource Download process of Canon Satera, Color imageCLASS, and i-SENSYS printer firmware versions v03.07 and earlier. An attacker on the same network segment can exploit this flaw to cause the device to become unresponsive (Denial of Service) or achieve arbitrary code execution with potentially elevated privileges.
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<= 03.07<= 03.07<= 03.07<= 03.07<= 03.07<= 03.07<= 03.07<= 03.07CVSS 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 the printer modelCheck the product label or access the printer's web interface/status page to confirm the exact model number (e.g., Mf755cdw, Mf753cdw, Mf751cdw, Lbp674c, Lbp672c, Lbp671c, Mf1238 Ii, Mf1333c)Affected if The model matches one of the eight listed affected models
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Check the installed firmware versionAccess the printer's web interface (embedded web server) or print a configuration/status page to locate the firmware version fieldAffected if The firmware version is v03.07 or earlier (e.g., v03.05, v03.06, v03.07)
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Confirm network accessibility of the deviceVerify the printer has an IP address and is reachable on the network; check if it responds to ping or has open network portsAffected if The printer is network-accessible to untrusted hosts on the same segment
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Determine if CPCA PDL Resource Download is exposedCheck the printer's web interface or documentation for CPCA/PDL settings; the vulnerability exists in the CPCA PDL Resource Download processAffected if The printer has network services enabled and CPCA PDL functionality is accessible (default configurations typically expose this)
The user is affected if their Canon printer model matches one of the eight listed models AND the firmware version is v03.07 or earlier, with the device accessible on a network where an attacker on the same segment could reach it.
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 · scopedUpdate printer firmware to v03.08 or later if available. Until patched, isolate affected printers in a dedicated network segment, restrict network access to trusted hosts only, and disable unused network services.
Firmware version 03.08 or later (specific to each affected model)
- 1. Identify the exact printer model number from the affected product list
- 2. Visit the Canon support website for your region (canon.jp, www.usa.canon.com, or www.canon-europe.com depending on purchase location)
- 3. Navigate to the support/drivers section and search for your specific printer model
- 4. Locate the firmware download section for your printer
- 5. Download the latest firmware version available (must be version 03.08 or higher)
- 6. Follow Canon's firmware update instructions, which typically involve: connecting the printer to a computer via USB or network, running the firmware update utility, and ensuring power is not interrupted during the update process
- 7. After update completes, verify the firmware version has been updated to 03.08 or later
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA1.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2023-6229 — 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-2023-6229 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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