Security readout for executives and security teams
Plain-English summary
This is a critical Canon printer vulnerability. A nearby network attacker may be able to make affected laser or multifunction printers stop responding or run arbitrary code. The sources identify specific Canon product families and firmware v03.07 and earlier across Japan, the US, and Europe.
Executive priority
Treat this as urgent where affected printers sit on shared office, guest, manufacturing, or unmanaged networks. Prioritize inventory and firmware validation first, then remediate devices reachable by broad internal segments.
Technical view
CVE-2023-6232 is a CWE-787 buffer overflow in the Address Book username processing during Mobile Device Function authentication. The CVSS 3.1 score is 9.8 with network attack vector, low complexity, no privileges, no user interaction, and high confidentiality, integrity, and availability impact.
Likely exposure
Exposure is most likely where affected Canon Office Multifunction Printers or Laser Printers are reachable by untrusted devices on the same network segment and run firmware v03.07 or earlier.
Exploitation context
The source bundle says an attacker on the network segment may trigger unresponsiveness or arbitrary code execution. CISA KEV is false in the bundle, and no provided source states active exploitation.
Researcher notes
Evidence is sufficient for affected model families, firmware threshold, vulnerability class, and CVSS impact. The bundle does not provide exploit details, confirmed exploitation, or a universal fixed version; rely on Canon regional advisories for exact remediation.
Mitigation direction
- Inventory Canon models listed in the affected product data.
- Check installed firmware against v03.07 and earlier.
- Review Canon regional advisories for official update or service guidance.
- Apply Canon-provided firmware updates or mitigations after change testing.
- Limit printer reachability to trusted network segments until remediated.
Validation and detection
- Confirm exact Canon model and regional product family.
- Record firmware version from device administration or asset records.
- Identify which users and networks can reach each affected printer.
- Verify remediation by confirming firmware is no longer v03.07 or earlier.
- Retain evidence linking each device to Canon advisory guidance.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-787: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2023-6232 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Critical
- CVSS
- 9.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H3.95.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
9.8CriticalVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://psirt.canon/advisory-information/cp2024-001/CVE reference · vendor-advisory
- https://canon.jp/support/support-info/240205vulnerability-responseCVE reference · vendor-advisory
- https://www.usa.canon.com/support/canon-product-advisories/Service-Notice-Regarding-Vulnerability-Measure-Against-Buffer-Overflow-for-Laser-Printers-and-Small-Office-Multifunctional-PrintersCVE reference · vendor-advisory
- https://www.canon-europe.com/support/product-security-latest-news/CVE reference · vendor-advisory
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Out-of-bounds Write
Out-of-bounds Write represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.