Home/CVE/Buffer overflow in NetBIOS QNAME registering and communication process of Office / Small Office Multifunction Printers a
CVE

CVE-2023-0854

Buffer overflow in NetBIOS QNAME registering and communication process of Office / Small Office Multifunction Printers a

Buffer overflow in NetBIOS QNAME registering and communication 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.

CRITICAL · CVSS 9.8 EPSS 0.01206
Schedule remediation
  • SSVC automatable: yes - attacks can be scripted at scale
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-122Heap-based Buffer Overflow
CWE-787Out-of-bounds Write
▤

Affected Products & Versions

45
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
▣

Scoring & Timeline

9.8
CRITICAL · CVSS v3.1 · f98c90f0-e9bd-4fa7-911b-51993f3571fd
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD11 May 2023 · 01:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
yes
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
🔗

References & Sources

4
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://canon.jp/support/support-info/230414vulnerability-response
https://psirt.canon/advisory-information/cp2023-001/
https://www.canon-europe.com/support/product-security-latest-news/
https://www.usa.canon.com/support/canon-product-advisories/Service-Notice-Vulnerabilities-Remediation-Against-Buffer-Overflow
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