TI-2022-21376 Aliases CVE-2022-43608 GHSA-9922-6549-73mx

Integer overflow in Canon Inc. imageCLASS MF644Cdw

MEDIUM 42CWE-190Published 2023-03-29 · Updated 2025-02-14

Key facts

Attack vector: Adjacent network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-190 and the CVSS impact.

Summary

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Canon imageCLASS MF644Cdw 10.03 printers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the BJNP service. The issue results from the lack of proper validation of user-supplied data, which can result in an integer overflow before allocating a buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-16032.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00837 57th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Canon Inc.	imageCLASS MF644Cdw	10.03	—	No fix listed	CNA

imageCLASS MF644Cdw VendorCanon Inc. Affected 10.03 Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPE	Versions	Role	Vendor
cpe:2.3:o:canon:mf644cdw_firmware:10.03:::::::*	10.03	Vulnerable	Canon Inc.
cpe:2.3:h:canon:mf644cdw:-:::::::*	not specified by NVD	Running on	Canon Inc.

cpe:2.3:o:canon:mf644cdw_firmware:10.03:*:*:*:*:*:*:* Versions 10.03 Vulnerable ·Canon Inc.
cpe:2.3:h:canon:mf644cdw:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Canon Inc.

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2022-43608
2026-10-03 Alias added: GHSA-9922-6549-73mx

References

Advisory 2

TI-2023-00811 Stack-based buffer overflow in Canon Office/Small Office Multifunction Printers and Laser… CVSS 3.1CRITICAL 9.8
TI-2023-00810 Stack-based buffer overflow in Canon Office/Small Office Multifunction Printers and Laser… CVSS 3.1CRITICAL 9.8
TI-2023-00809 Heap-based buffer overflow in Canon Office/Small Office Multifunction Printers and Laser… CVSS 3.1CRITICAL 9.8
TI-2023-00808 Stack-based buffer overflow in Canon Office/Small Office Multifunction Printers and Laser… CVSS 3.1CRITICAL 9.8
TI-2023-00807 Stack-based buffer overflow in Canon Office/Small Office Multifunction Printers and Laser… CVSS 3.1CRITICAL 9.8
TI-2023-00806 Heap-based buffer overflow in Canon Office/Small Office Multifunction Printers and Laser… CVSS 3.1CRITICAL 9.8

See all 12 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences