No exploitation reported

CVE-2023-6231

No exploitation reported by the sources we read.

Published2024-02-06
WeaknessCWE-787

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC

2024-02-0601:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2023-6231?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2023-6231?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Canon i-sensys lbp673cdw firmwareversion to verify

Branch	Affected	Fixed in	Source
3.7	≤ 03.07	no fix published	NVD

Canon i-sensys mf752cdw firmwareversion to verify

Branch	Affected	Fixed in	Source
3.7	≤ 03.07	no fix published	NVD

Canon i-sensys mf754cdw firmwareversion to verify

Branch	Affected	Fixed in	Source
3.7	≤ 03.07	no fix published	NVD

26 more products in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Advisories and patches

canon.jpVendor Advisory
psirt.canonVendor Advisory
www.canon-europe.comVendor Advisory
www.usa.canon.comVendor Advisory

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

CISA-ADPSSVC decisionnone2024-02-06
OpenCVESSVC decisionnone—
CNACVSS 3.19.8read 2026-10-23
NVDCVSS 3.19.8read 2026-10-23
CNAweakness (CWE)CWE-787read 2026-10-23
NVDweakness (CWE)CWE-787read 2026-10-23
FIRST EPSSEPSS score1.4 %2026-10-22

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published: 2024-02-06
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2023-6231?

Is CVE-2023-6231 actively exploited?

Active exploitation of CVE-2023-6231 has not been confirmed. Its EPSS score was 1.4% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2023-6231?

CVE-2023-6231 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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