CVE-2025-2146 Memory corruption in Color imageCLASS LBP632Cdw
A buffer overflow in Canon printer firmware allows network attackers to execute arbitrary code or cause denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-2146?
CVE-2025-2146 is a critical memory corruption vulnerability in Canon Inc. Color imageCLASS LBP632Cdw, published on 25 May 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-787
Which versions are affected by CVE-2025-2146?
It affects 37 products.
Products include Canon I-Sensys Lbp233dw Firmware, Canon I-Sensys Lbp236dw Firmware, Canon I-Sensys Lbp631cdw Firmware, Canon I-Sensys Lbp633cdw Firmware, Canon I-Sensys Mf453dw Firmware, Canon I-Sensys Mf455dw Firmware and 31 more.
How do I fix CVE-2025-2146?
No fix has been published for CVE-2025-2146 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2025-2146 being exploited?
There is no known exploitation of CVE-2025-2146 in the wild and no public exploit code.
Sources
Also known as GHSA-xcjx-g6h3-96jc.