CVE-2023-0851: Buffer overflow in CPCA Resource Download process of Office / Small Office Multifunction Printers and Laser Printers(*) which may allow an attacker on...

Description

Buffer overflow in CPCA Resource Download process of Office / 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 LBP660C Series/LBP620C Series/MF740C Series/MF640C Series firmware Ver.11.04 and earlier sold in Japan. Color imageCLASS LBP660C Series/LBP 620C Series/X LBP1127C/MF740C Series/MF640C Series/X MF1127C firmware Ver.11.04 and earlier sold in US. i-SENSYS LBP660C Series/LBP620C Series/MF740C Series/MF640C Series, C1127P, C1127iF, C1127i firmware Ver.11.04 and earlier sold in Europe.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

1.14%

62.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Canon	Mf642cdw Firmware	<= 11.04
Canon	Mf644cdw Firmware	<= 11.04
Canon	Mf741cdw Firmware	<= 11.04
Canon	Mf743cdw Firmware	<= 11.04
Canon	Mf745cdw Firmware	<= 11.04
Canon	Lbp621c Firmware	<= 11.04
Canon	Lbp622c Firmware	<= 11.04
Canon	Lbp661c Firmware	<= 11.04
Canon	Lbp662c Firmware	<= 11.04
Canon	Lbp664c Firmware	<= 11.04
Canon	Mf1127c Firmware	<= 11.04
Canon	Mf262dw Ii Firmware	<= 11.04
Canon	Mf264dw Ii Firmware	<= 11.04
Canon	Mf267dw Ii Firmware	<= 11.04
Canon	Mf269dw Ii Firmware	<= 11.04
Canon	Mf269dw Vp Ii Firmware	<= 11.04
Canon	Mf272dw Firmware	<= 11.04
Canon	Mf273dw Firmware	<= 11.04
Canon	Mf275dw Firmware	<= 11.04
Canon	Mf641cw Firmware	<= 11.04
Canon	Mf746cdw Firmware	<= 11.04
Canon	Lbp122dw Firmware	<= 11.04
Canon	Lbp1127c Firmware	<= 11.04
Canon	Lbp622cdw Firmware	<= 11.04
Canon	Lbp623cdw Firmware	<= 11.04
Canon	Lbp664cdw Firmware	<= 11.04
Canon	Imageprograf Tc-20 Firmware	<= 11.04
Canon	Imageprograf Tc-20m Firmware	<= 11.04
Canon	Pixma G3270 Firmware	<= 11.04
Canon	Pixma G4270 Firmware	<= 11.04
Canon	Maxify Gx3020 Firmware	<= 11.04
Canon	Maxify Gx4020 Firmware	<= 11.04
Canon	I-Sensys Lbp621cw Firmware	<= 11.04
Canon	I-Sensys Lbp623cdw Firmware	<= 11.04
Canon	I-Sensys Lbp633cdw Firmware	<= 11.04
Canon	I-Sensys Lbp664cx Firmware	<= 11.04
Canon	I-Sensys Mf641cw Firmware	<= 11.04
Canon	I-Sensys Mf643cdw Firmware	<= 11.04
Canon	I-Sensys Mf645cx Firmware	<= 11.04
Canon	I-Sensys Mf742cdw Firmware	<= 11.04
Canon	I-Sensys Mf744cdw Firmware	<= 11.04
Canon	I-Sensys Mf746cx Firmware	<= 11.04
Canon	I-Sensys X C1127i Firmware	<= 11.04
Canon	I-Sensys X C1127if Firmware	<= 11.04
Canon	I-Sensys X C1127p Firmware	<= 11.04

References

Timeline

Published: May 11, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-0851?

Buffer overflow in CPCA Resource Download process of Office / 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 LBP660C Series/LBP620C Series/MF740C Series/MF640C Series firmware Ver.11.04 and earlier sold in Japan. Color imageCLASS LBP660C Series/LBP 620C Series/X LBP1127C/MF740C Series/MF640C Series/X MF1127C firmware Ver.11.04 and earlier sold in US. i-SENSYS LBP660C Series/LBP620C Series/MF740C Series/MF640C Series, C1127P, C1127iF, C1127i firmware Ver.11.04 and earlier sold in Europe.

How severe is CVE-2023-0851?

CVE-2023-0851 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.14% probability of exploitation in the next 30 days.

How do I fix CVE-2023-0851?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.