What is CVE-2025-2146?

CVE-2025-2146 is a critical-severity vulnerability in Canon Imageclass Lbp236dw, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2025-05-26.

How severe is CVE-2025-2146?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2025-2146 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in Canon Imageclass Lbp236dw

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 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.

Vulnerability class: Buffer Overflow

EPSS: 0.009 (56.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

Public proof-of-concept exploits

ARPSyndicate/cve-scores

References

f98c90f0-e9bd-4fa7-911b-51993f3571fd (vendor-advisory, Vendor Advisory)
f98c90f0-e9bd-4fa7-911b-51993f3571fd (vendor-advisory, Vendor Advisory)
f98c90f0-e9bd-4fa7-911b-51993f3571fd (vendor-advisory, Vendor Advisory)
f98c90f0-e9bd-4fa7-911b-51993f3571fd (vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2025-2146?: CVE-2025-2146 is a critical-severity vulnerability in Canon Imageclass Lbp236dw, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2025-05-26.
How severe is CVE-2025-2146?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2025-2146 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.