Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

CVE-2020-16849


An issue was discovered on Canon MF237w 06.07 devices. An "Improper Handling of Length Parameter Inconsistency" issue in the IPv4/ICMPv4 component, when handling a packet sent by an unauthenticated network attacker, may expose Sensitive Information.


Security Impact Summary

This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 7.5, indicating it can be exploited remotely over the network with relatively low complexity without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts confidentiality (data exposure), for affected systems. Impacting 56 products from canon, from canon, from canon and 53 others, organizations running these solutions should prioritize assessment and patching.

Historical Context

Reported in 2020, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.


Published

2020-11-30T22:15:10.777

Last Modified

2024-11-21T05:07:15.857

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.5 (HIGH)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:P/I:N/A:N

  • Access Vector: NETWORK
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: PARTIAL
  • Integrity Impact: NONE
  • Availability Impact: NONE
Exploitability Score

10.0

Impact Score

2.9

Weaknesses
  • Type: Primary
    NVD-CWE-Other

Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System canon mf237w_firmware 06.07 Yes
Hardware canon mf237w - No
Operating System canon mf113w_firmware - Yes
Hardware canon mf113w - No
Operating System canon mf212w_firmware - Yes
Hardware canon mf212w - No
Operating System canon mf216n_firmware - Yes
Hardware canon mf216n - No
Operating System canon mf217w_firmware - Yes
Hardware canon mf217w - No
Operating System canon mf226dn_firmware - Yes
Hardware canon mf226dn - No
Operating System canon mf229dw_firmware - Yes
Hardware canon mf229dw - No
Operating System canon mf231_firmware - Yes
Hardware canon mf231 - No
Operating System canon mf232w_firmware - Yes
Hardware canon mf232w - No
Operating System canon mf244dw_firmware - Yes
Hardware canon mf244dw - No
Operating System canon mf247dw_firmware - Yes
Hardware canon mf247dw - No
Operating System canon mf249dw_firmware - Yes
Hardware canon mf249dw - No
Operating System canon mf264dw_firmware - Yes
Hardware canon mf264dw - No
Operating System canon mf267dw_firmware - Yes
Hardware canon mf267dw - No
Operating System canon mf269dw_firmware - Yes
Hardware canon mf269dw - No
Operating System canon mf4570dn_firmware - Yes
Hardware canon mf4570dn - No
Operating System canon mf4580dn_firmware - Yes
Hardware canon mf4580dn - No
Operating System canon mf4780w_firmware - Yes
Hardware canon mf4780w - No
Operating System canon mf4870dn_firmware - Yes
Hardware canon mf4870dn - No
Operating System canon mf4890dw_firmware - Yes
Hardware canon mf4890dw - No
Operating System canon lbp113w_firmware - Yes
Hardware canon lbp113w - No
Operating System canon lbp151dw_firmware - Yes
Hardware canon lbp151dw - No
Operating System canon lbp162dw_firmware - Yes
Hardware canon lbp162dw - No
Operating System canon ir2202n_firmware - Yes
Hardware canon ir2202n - No
Operating System canon ir2204n_firmware - Yes
Hardware canon ir2204n - No
Operating System canon ir2204f_firmware - Yes
Hardware canon ir2204f - No
Operating System canon ir2206n_firmware - Yes
Hardware canon ir2206n - No
Operating System canon ir2206if_firmware - Yes
Hardware canon ir2206if - No

References

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For canon's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.