CVE-2025-2146

Canon imageCLASS MF656Cdw sfpcmAuthenticateSecAdmin Stack-based Buffer Overflow Remote Code Execution Vulnerability

Severity Score

9.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Attend

*SSVC

Descriptions

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.

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Canon imageCLASS MF656Cdw printers. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the sfpcmAuthenticateSecAdmin function. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the device.

*Credits: YingMuo (@YingMuo) working with DEVCORE Internship Program.

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Adjacent

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:Attend

Exploitation

None

Automatable

Yes

Tech. Impact

Total

* Organization's Worst-case Scenario

Timeline

2025-03-10 CVE Reserved
2025-05-25 CVE Published
2025-05-28 CVE Updated
2025-06-04 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-787: Out-of-bounds Write

CAPEC

References (4)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://canon.jp/support/support-info/250127vulnerability-response	2025-05-26
https://psirt.canon/advisory-information/cp2025-001	2025-05-26
https://www.canon-europe.com/support/product-security/#news	2025-05-26
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	2025-05-26

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Canon Inc. Search vendor "Canon Inc."		Satera MF656Cdw Search vendor "Canon Inc." for product "Satera MF656Cdw"				05.07 Search vendor "Canon Inc." for product "Satera MF656Cdw" and version "05.07"		en		Affected
Canon Inc. Search vendor "Canon Inc."		Satera MF654Cdw Search vendor "Canon Inc." for product "Satera MF654Cdw"				05.07 Search vendor "Canon Inc." for product "Satera MF654Cdw" and version "05.07"		en		Affected
Canon Inc. Search vendor "Canon Inc."		Satera MF551dw Search vendor "Canon Inc." for product "Satera MF551dw"				05.07 Search vendor "Canon Inc." for product "Satera MF551dw" and version "05.07"		en		Affected
Canon Inc. Search vendor "Canon Inc."		Satera MF457dw Search vendor "Canon Inc." for product "Satera MF457dw"				05.07 Search vendor "Canon Inc." for product "Satera MF457dw" and version "05.07"		en		Affected
Canon Inc. Search vendor "Canon Inc."		Color ImageCLASS MF656Cdw Search vendor "Canon Inc." for product "Color ImageCLASS MF656Cdw"				05.07 Search vendor "Canon Inc." for product "Color ImageCLASS MF656Cdw" and version "05.07"		en		Affected
Canon Inc. Search vendor "Canon Inc."		Color ImageCLASS MF654Cdw Search vendor "Canon Inc." for product "Color ImageCLASS MF654Cdw"				05.07 Search vendor "Canon Inc." for product "Color ImageCLASS MF654Cdw" and version "05.07"		en		Affected
Canon Inc. Search vendor "Canon Inc."		Color ImageCLASS MF653Cdw Search vendor "Canon Inc." for product "Color ImageCLASS MF653Cdw"				05.07 Search vendor "Canon Inc." for product "Color ImageCLASS MF653Cdw" and version "05.07"		en		Affected
Canon Inc. Search vendor "Canon Inc."		Color ImageCLASS MF652Cdw Search vendor "Canon Inc." for product "Color ImageCLASS MF652Cdw"				05.07 Search vendor "Canon Inc." for product "Color ImageCLASS MF652Cdw" and version "05.07"		en		Affected
Canon Inc. Search vendor "Canon Inc."		Color ImageCLASS LBP633Cdw Search vendor "Canon Inc." for product "Color ImageCLASS LBP633Cdw"				05.07 Search vendor "Canon Inc." for product "Color ImageCLASS LBP633Cdw" and version "05.07"		en		Affected
Canon Inc. Search vendor "Canon Inc."		Color ImageCLASS LBP632Cdw Search vendor "Canon Inc." for product "Color ImageCLASS LBP632Cdw"				05.07 Search vendor "Canon Inc." for product "Color ImageCLASS LBP632Cdw" and version "05.07"		en		Affected
Canon Inc. Search vendor "Canon Inc."		ImageCLASS MF455dw Search vendor "Canon Inc." for product "ImageCLASS MF455dw"				05.07 Search vendor "Canon Inc." for product "ImageCLASS MF455dw" and version "05.07"		en		Affected
Canon Inc. Search vendor "Canon Inc."		ImageCLASS MF453dw Search vendor "Canon Inc." for product "ImageCLASS MF453dw"				05.07 Search vendor "Canon Inc." for product "ImageCLASS MF453dw" and version "05.07"		en		Affected
Canon Inc. Search vendor "Canon Inc."		ImageCLASS MF452dw Search vendor "Canon Inc." for product "ImageCLASS MF452dw"				05.07 Search vendor "Canon Inc." for product "ImageCLASS MF452dw" and version "05.07"		en		Affected
Canon Inc. Search vendor "Canon Inc."		ImageCLASS MF451dw Search vendor "Canon Inc." for product "ImageCLASS MF451dw"				05.07 Search vendor "Canon Inc." for product "ImageCLASS MF451dw" and version "05.07"		en		Affected
Canon Inc. Search vendor "Canon Inc."		ImageCLASS LBP237dw Search vendor "Canon Inc." for product "ImageCLASS LBP237dw"				05.07 Search vendor "Canon Inc." for product "ImageCLASS LBP237dw" and version "05.07"		en		Affected
Canon Inc. Search vendor "Canon Inc."		ImageCLASS LBP236dw Search vendor "Canon Inc." for product "ImageCLASS LBP236dw"				05.07 Search vendor "Canon Inc." for product "ImageCLASS LBP236dw" and version "05.07"		en		Affected
Canon Inc. Search vendor "Canon Inc."		ImageCLASS X MF1238 II Search vendor "Canon Inc." for product "ImageCLASS X MF1238 II"				05.07 Search vendor "Canon Inc." for product "ImageCLASS X MF1238 II" and version "05.07"		en		Affected
Canon Inc. Search vendor "Canon Inc."		ImageCLASS X MF1643i II Search vendor "Canon Inc." for product "ImageCLASS X MF1643i II"				05.07 Search vendor "Canon Inc." for product "ImageCLASS X MF1643i II" and version "05.07"		en		Affected
Canon Inc. Search vendor "Canon Inc."		ImageCLASS X MF1643iF II Search vendor "Canon Inc." for product "ImageCLASS X MF1643iF II"				05.07 Search vendor "Canon Inc." for product "ImageCLASS X MF1643iF II" and version "05.07"		en		Affected
Canon Inc. Search vendor "Canon Inc."		ImageCLASS X LBP1238 II Search vendor "Canon Inc." for product "ImageCLASS X LBP1238 II"				05.07 Search vendor "Canon Inc." for product "ImageCLASS X LBP1238 II" and version "05.07"		en		Affected
Canon Inc. Search vendor "Canon Inc."		I-SENSYS MF657Cdw Search vendor "Canon Inc." for product "I-SENSYS MF657Cdw"				05.07 Search vendor "Canon Inc." for product "I-SENSYS MF657Cdw" and version "05.07"		en		Affected
Canon Inc. Search vendor "Canon Inc."		I-SENSYS MF655Cdw Search vendor "Canon Inc." for product "I-SENSYS MF655Cdw"				05.07 Search vendor "Canon Inc." for product "I-SENSYS MF655Cdw" and version "05.07"		en		Affected
Canon Inc. Search vendor "Canon Inc."		I-SENSYS MF651Cdw Search vendor "Canon Inc." for product "I-SENSYS MF651Cdw"				05.07 Search vendor "Canon Inc." for product "I-SENSYS MF651Cdw" and version "05.07"		en		Affected
Canon Inc. Search vendor "Canon Inc."		I-SENSYS LBP633Cdw Search vendor "Canon Inc." for product "I-SENSYS LBP633Cdw"				05.07 Search vendor "Canon Inc." for product "I-SENSYS LBP633Cdw" and version "05.07"		en		Affected
Canon Inc. Search vendor "Canon Inc."		I-SENSYS LBP631Cdw Search vendor "Canon Inc." for product "I-SENSYS LBP631Cdw"				05.07 Search vendor "Canon Inc." for product "I-SENSYS LBP631Cdw" and version "05.07"		en		Affected
Canon Inc. Search vendor "Canon Inc."		I-SENSYS MF553dw Search vendor "Canon Inc." for product "I-SENSYS MF553dw"				05.07 Search vendor "Canon Inc." for product "I-SENSYS MF553dw" and version "05.07"		en		Affected
Canon Inc. Search vendor "Canon Inc."		I-SENSYS MF552dw Search vendor "Canon Inc." for product "I-SENSYS MF552dw"				05.07 Search vendor "Canon Inc." for product "I-SENSYS MF552dw" and version "05.07"		en		Affected
Canon Inc. Search vendor "Canon Inc."		I-SENSYS MF455dw Search vendor "Canon Inc." for product "I-SENSYS MF455dw"				05.07 Search vendor "Canon Inc." for product "I-SENSYS MF455dw" and version "05.07"		en		Affected
Canon Inc. Search vendor "Canon Inc."		I-SENSYS MF453dw Search vendor "Canon Inc." for product "I-SENSYS MF453dw"				05.07 Search vendor "Canon Inc." for product "I-SENSYS MF453dw" and version "05.07"		en		Affected
Canon Inc. Search vendor "Canon Inc."		I-SENSYS LBP236dw Search vendor "Canon Inc." for product "I-SENSYS LBP236dw"				05.07 Search vendor "Canon Inc." for product "I-SENSYS LBP236dw" and version "05.07"		en		Affected
Canon Inc. Search vendor "Canon Inc."		I-SENSYS LBP233dw Search vendor "Canon Inc." for product "I-SENSYS LBP233dw"				05.07 Search vendor "Canon Inc." for product "I-SENSYS LBP233dw" and version "05.07"		en		Affected
Canon Inc. Search vendor "Canon Inc."		ImageRUNNER 1643iF II Search vendor "Canon Inc." for product "ImageRUNNER 1643iF II"				05.07 Search vendor "Canon Inc." for product "ImageRUNNER 1643iF II" and version "05.07"		en		Affected
Canon Inc. Search vendor "Canon Inc."		ImageRUNNER 1643i II Search vendor "Canon Inc." for product "ImageRUNNER 1643i II"				05.07 Search vendor "Canon Inc." for product "ImageRUNNER 1643i II" and version "05.07"		en		Affected
Canon Inc. Search vendor "Canon Inc."		I-SENSYS X 1238iF II Search vendor "Canon Inc." for product "I-SENSYS X 1238iF II"				05.07 Search vendor "Canon Inc." for product "I-SENSYS X 1238iF II" and version "05.07"		en		Affected
Canon Inc. Search vendor "Canon Inc."		I-SENSYS X 1238i II Search vendor "Canon Inc." for product "I-SENSYS X 1238i II"				05.07 Search vendor "Canon Inc." for product "I-SENSYS X 1238i II" and version "05.07"		en		Affected
Canon Inc. Search vendor "Canon Inc."		I-SENSYS X 1238P II Search vendor "Canon Inc." for product "I-SENSYS X 1238P II"				05.07 Search vendor "Canon Inc." for product "I-SENSYS X 1238P II" and version "05.07"		en		Affected
Canon Inc. Search vendor "Canon Inc."		I-SENSYS X 1238Pr II Search vendor "Canon Inc." for product "I-SENSYS X 1238Pr II"				05.07 Search vendor "Canon Inc." for product "I-SENSYS X 1238Pr II" and version "05.07"		en		Affected