HOMEVULNERABILITIESCVE-2023-6231
CRITICAL

CVE-2023-6231

CWE-787Published: February 6, 2024· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official Description

Buffer overflow in WSD probe request process of 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 LBP670C Series/Satera MF750C Series firmware v03.07 and earlier sold in Japan. Color imageCLASS LBP674C/Color imageCLASS X LBP1333C/Color imageCLASS MF750C Series/Color imageCLASS X MF1333C Series firmware v03.07 and earlier sold in US. i-SENSYS LBP673Cdw/C1333P/i-SENSYS MF750C Series/C1333i Series firmware v03.07 and earlier sold in Europe.

NVD Source

Risk Analysis

A buffer overflow in the WSD probe request process of Canon printers allows a remote, unauthenticated attacker to trigger a crash or execute arbitrary code. The critical CVSS score reflects the high impact of this remote access flaw.

No public exploit exists, and it is not tracked in the KEV. The vulnerability is remotely exploitable.

Recommended Action

Update the device firmware to a version beyond v03.07 to patch the vulnerability.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2023-6231 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

From a weakness classification perspective (CWE-787): Out-of-bounds write vulnerabilities can lead to data corruption, crashes, or arbitrary code execution.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

canon58 product(s)
mf755cdw firmwaremf755cdwmf753cdw firmwaremf753cdwmf751cdw firmwaremf751cdwlbp674c firmwarelbp674clbp672c firmwarelbp672clbp671c firmwarelbp671c+46
Source: NVD CPE · 58 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://canon.jp/support/support-info/240205vulnerability-response
ADVISORYhttps://psirt.canon/advisory-information/cp2024-001/
ADVISORYhttps://www.canon-europe.com/support/product-security-latest-news/
ADVISORYhttps://www.usa.canon.com/support/canon-product-advisories/Service-Notice-Regarding-Vulnerability-Measure-Against-Buffer-Overflow-for-Laser-Printers-and-Small-Office-Multifunctional-Printers
ADVISORYhttps://canon.jp/support/support-info/240205vulnerability-response
ADVISORYhttps://psirt.canon/advisory-information/cp2024-001/
ADVISORYhttps://www.canon-europe.com/support/product-security-latest-news/
ADVISORYhttps://www.usa.canon.com/support/canon-product-advisories/Service-Notice-Regarding-Vulnerability-Measure-Against-Buffer-Overflow-for-Laser-Printers-and-Small-Office-Multifunctional-Printers

All References (8)

→
https://canon.jp/support/support-info/240205vulnerability-responseVendor Advisory
→
https://psirt.canon/advisory-information/cp2024-001/Vendor Advisory
→
https://www.canon-europe.com/support/product-security-latest-news/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-PrintersVendor Advisory
→
https://canon.jp/support/support-info/240205vulnerability-responseVendor Advisory
→
https://psirt.canon/advisory-information/cp2024-001/Vendor Advisory
→
https://www.canon-europe.com/support/product-security-latest-news/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-PrintersVendor Advisory

Quick Facts

CVE IDCVE-2023-6231
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-787
CISA KEVNo
Affected1 vendor(s)
PublishedFeb 6, 2024

Related CVEs (CWE-787)

CVE-2013-5610
10.0
CVE-2018-2913
10.0
CVE-2026-42369
10.0
CVE-2004-0978
10.0
CVE-2018-6692
10.0
CVE-2018-3991
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2023-6231 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.
← All Vulnerabilities·Search for CVE-2023-6231·NVD