Critical severity · published May 25, 2025
CVE-2025-2146
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…
9.8
CVSS
0.9%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.9% · higher than 60% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CI
Color imageCLASS LBP632Cdw · Canon Inc.
05.07 and earlier · source: vendor
CI
Color imageCLASS LBP633Cdw · Canon Inc.
05.07 and earlier · source: vendor
CI
Color imageCLASS MF652Cdw · Canon Inc.
05.07 and earlier · source: vendor
CI
Color imageCLASS MF653Cdw · Canon Inc.
05.07 and earlier · source: vendor
CI
Color imageCLASS MF654Cdw · Canon Inc.
05.07 and earlier · source: vendor
CI
Color imageCLASS MF656Cdw · Canon Inc.
05.07 and earlier · source: vendor
SM
Satera MF457dw · Canon Inc.
05.07 and earlier · source: vendor
SM
Satera MF551dw · Canon Inc.
05.07 and earlier · source: vendor
SM
Satera MF654Cdw · Canon Inc.
05.07 and earlier · source: vendor
SM
Satera MF656Cdw · Canon Inc.
05.07 and earlier · source: vendor
IL
i-SENSYS LBP233dw · Canon Inc.
05.07 and earlier · source: vendor
IL
i-SENSYS LBP236dw · Canon Inc.
05.07 and earlier · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-2146
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-2146
Vendor Advisory
https://canon.jp/support/support-info/250127vulnerability-response
Vendor Advisory
https://psirt.canon/advisory-information/cp2025-001/
Vendor Advisory
https://www.canon-europe.com/support/product-security/#news
Vendor Advisory
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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