Security readout for executives and security teams
Plain-English summary
CVE-2023-6233 affects specific Canon office multifunction and laser printers running firmware v03.07 or earlier. A network-adjacent attacker could crash the device or potentially run arbitrary code through the SLP attribute request handling path. Treat exposed affected printers as urgent infrastructure risk.
Executive priority
Prioritize within the next patch cycle, faster for shared office networks or segmented environments with weak internal controls. The risk is high because exploitation requires no credentials or user interaction, and impact can include device outage or code execution.
Technical view
The issue is a CWE-787 buffer overflow in Canon printer SLP attribute request processing. CVSS 3.1 is 9.8: 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 models are reachable from user, guest, or unmanaged network segments. The source bundle limits affected products to listed Satera, Color imageCLASS, imageCLASS X, i-SENSYS, C1333P, and C1333i devices on firmware v03.07 or earlier.
Exploitation context
The bundle does not show CISA KEV listing or cited evidence of active exploitation. Canon and CVE sources state the flaw may let an attacker on the network segment make devices unresponsive or execute arbitrary code.
Researcher notes
Do not generalize this to all Canon printers. The source bundle names specific regional product families and firmware v03.07 or earlier. No exploit code, public exploitation, or definitive fixed firmware version is provided in the bundle.
Mitigation direction
- Check Canon regional advisories for firmware updates or official mitigation guidance.
- Update affected devices running firmware v03.07 or earlier when vendor firmware is available.
- Restrict printer access to trusted network segments and administrative hosts.
- Limit unnecessary SLP exposure across user, guest, and unmanaged networks.
- Prioritize unsupported or unpatchable devices for isolation or replacement.
Validation and detection
- Inventory Canon printer models against the affected product list.
- Record firmware versions and flag v03.07 or earlier for remediation.
- Confirm printer services are not reachable from untrusted network segments.
- Review Canon regional advisories for model-specific firmware guidance.
- Track remediation evidence by device serial, model, firmware, and network zone.
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-2023-6233 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.