Executive Risk Summary
"A buffer overflow vulnerability in the WebService Authentication processing of Canon Small Office Multifunction Printers and Laser Printers may allow an attacker on the network segment to trigger the affected product being unresponsive or to execute arbitrary code. This vulnerability affects various Canon printer models sold in Japan, the US, and Europe with firmware version v05.07 and earlier."
Anticipated Attack Path
- 1. Attacker sends a crafted request to the WebService Authentication endpoint
- 2. Buffer overflow occurs, potentially allowing arbitrary code execution
- 3. Attacker gains control of the affected printer, potentially leading to further exploitation
Am I Vulnerable?
- Verify the firmware version of the Canon printer models
- Check for any suspicious network activity targeting the WebService Authentication endpoint
- Apply the latest firmware update to mitigate the vulnerability
Operational Audit Arsenal
Target Type firmware
Target Asset WebService Authentication
Standard Path Canon printer models (e.g., Satera MF656Cdw, Color imageCLASS MF656Cdw, i-SENSYS MF657Cdw)
Manual Verification Required
This is a non-Windows asset (Canon). Use the target asset details and official path provided above to verify your current version against the official vendor advisories listed below.
Patch Impact Forecast
Reboot Required Likely
Potential disruption to printing services during firmware update
Internal Work Notes
CVE-2025-2146: Buffer overflow vulnerability in Canon Printers - WebService Authentication, requiring firmware update to mitigate potential arbitrary code execution
Technical Intelligence & Operational Utilities • Delivered Weekly
Intelligence Sources
Official Advisoryhttps://canon.jp/support/support-info/250127vulnerability-response
Official Advisoryhttps://psirt.canon/advisory-information/cp2025-001/
Official Advisoryhttps://www.canon-europe.com/support/product-security/#news
Official Advisoryhttps://www.usa.canon.com/support/canon-product-advisories/service-notice-regarding-vulnerability-measure-against-buffer-overflow-for-laser-printers-and-small-office-multifunctional-printers
Related Canon Threats
Data compiled from NVD, MSRC, and CISA KEV Catalog. Intelligence synthesized via AI. Scripts provided for diagnostic purposes under MIT License.