What is CVE-2025-14234?

CVE-2025-14234 is a critical-severity vulnerability in Canon Lbp1238 Ii, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2026-01-16.

How severe is CVE-2025-14234?

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

Buffer overflow in Canon Lbp1238 Ii

CVE-2025-14234

Buffer overflow in CPCA list processing on 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 LBP670C Series/Satera MF750C Series firmware v06.02 and earlier sold in Japan.Color imageCLASS LBP630C/Color imageCLASS MF650C Series/imageCLASS LBP230 Series/imageCLASS X LBP1238 II/imageCLASS MF450 Series/imageCLASS X MF1238 II/imageCLASS X MF1643i II/imageCLASS X MF1643iF II firmware v06.02 and earlier sold in US.i-SENSYS LBP630C Series/i-SENSYS MF650C Series/i-SENSYS LBP230 Series/1238P II/1238Pr II/i-SENSYS MF450 Series/i-SENSYS MF550 Series/1238i II/1238iF II/imageRUNNER 1643i II/imageRUNNER 1643iF II firmware v06.02 and earlier sold in Europe.

Vulnerability class: Buffer Overflow

EPSS: 0.008 (53.8th 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

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-2025-14234?: CVE-2025-14234 is a critical-severity vulnerability in Canon Lbp1238 Ii, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2026-01-16.
How severe is CVE-2025-14234?: Critical severity. CVSS v3 base score is 9.8 out of 10.