What’s Vulnerable › Vulnerabilities

CVE-2025-2146

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-05-26 · updated 2026-06-17
• Weakness: CWE-787

Description

Buffer overflow in WebService Authentication processing of Small 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 MF656Cdw/Satera MF654Cdw/Satera MF551dw/Satera MF457dw firmware v05.07 and earlier sold in Japan. Color imageCLASS MF656Cdw/Color imageCLASS MF654Cdw/Color imageCLASS MF653Cdw/Color imageCLASS MF652Cdw/Color imageCLASS LBP633Cdw/Color imageCLASS LBP632Cdw/imageCLASS MF455dw/imageCLASS MF453dw/imageCLASS MF452dw/imageCLASS MF451dw/imageCLASS LBP237dw/imageCLASS LBP236dw/imageCLASS X MF1238 II/imageCLASS X MF1643i II/imageCLASS X MF1643iF II/imageCLASS X LBP1238 II firmware v05.07 and earlier sold in US. i-SENSYS MF657Cdw/i-SENSYS MF655Cdw/i-SENSYS MF651Cdw/i-SENSYS LBP633Cdw/i-SENSYS LBP631Cdw/i-SENSYS MF553dw/i-SENSYS MF552dw/i-SENSYS MF455dw/i-SENSYS MF453dw/i-SENSYS LBP236dw/i-SENSYS LBP233dw/imageRUNNER 1643iF II/imageRUNNER 1643i II/i-SENSYS X 1238iF II/i-SENSYS X 1238i II/i-SENSYS X 1238P II/i-SENSYS X 1238Pr II firmware v05.07 and earlier sold in Europe.

Affected products

• Canon I-Sensys Lbp233Dw Firmware: through 05.07
• Canon I-Sensys Lbp236Dw Firmware: through 05.07
• Canon I-Sensys Lbp631Cdw Firmware: through 05.07
• Canon I-Sensys Lbp633Cdw Firmware: through 05.07
• Canon I-Sensys Mf453Dw Firmware: through 05.07
• Canon I-Sensys Mf455Dw Firmware: through 05.07
• Canon I-Sensys Mf552Dw Firmware: through 05.07
• Canon I-Sensys Mf553Dw Firmware: through 05.07
• Canon I-Sensys Mf651Cdw Firmware: through 05.07
• Canon I-Sensys Mf655Cdw Firmware: through 05.07
• Canon I-Sensys Mf657Cdw Firmware: through 05.07
• Canon I-Sensys X 1238I Ii Firmware: through 05.07
• Canon I-Sensys X 1238If Ii Firmware: through 05.07
• Canon I-Sensys X 1238P Ii Firmware: through 05.07
• Canon I-Sensys X 1238Pr Ii Firmware: through 05.07
• Canon Imageclass Lbp236Dw Firmware: through 05.07
• Canon Imageclass Lbp237Dw Firmware: through 05.07
• Canon Imageclass Lbp632Cdw Firmware: through 05.07
• Canon Imageclass Lbp633Cdw Firmware: through 05.07
• Canon Imageclass Mf451Dw Firmware: through 05.07
• Canon Imageclass Mf452Dw Firmware: through 05.07
• Canon Imageclass Mf453Dw Firmware: through 05.07
• Canon Imageclass Mf455Dw Firmware: through 05.07
• Canon Imageclass Mf652Cdw Firmware: through 05.07
• Canon Imageclass Mf653Cdw Firmware: through 05.07
• Canon Imageclass Mf654Cdw Firmware: through 05.07
• Canon Imageclass Mf656Cdw Firmware: through 05.07
• Canon Imageclass X Lbp1238 Ii Firmware: through 05.07
• Canon Imageclass X Mf1238 Ii Firmware: through 05.07
• Canon Imageclass X Mf1643I Ii Firmware: through 05.07

References

• https://canon.jp/support/support-info/250127vulnerability-response
• https://psirt.canon/advisory-information/cp2025-001/
• https://www.canon-europe.com/support/product-security/#news
• 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

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