CVE-2023-6231

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.

Published: 2024-02-06 Last update: 2024-11-21 Assigner: f98c90f0-e9bd-4fa7-911b-51993f3571fd Source: f98c90f0-e9bd-4fa7-911b-51993f3571fd
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2023-6231 is rated Moderate Risk (57.6/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 0.31%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2023-6231

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-11-21 0.80% 0.31% -0.49%
2 2025-11-18 0.37% 0.80% +0.43%
3 2025-06-27 — 0.37% —

Full EPSS history (11 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-6231

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.8 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 5.9 f98c90f0-e9bd-4fa7-911b-51993f3571fd
9.8 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 5.9 [email protected]

Weakness enumeration for CVE-2023-6231

Affected software / configurations for CVE-2023-6231

Vendor Product Version Raw CPE
canon mf755cdw_firmware <= 03.07 cpe:2.3:o:canon:mf755cdw_firmware:*:*:*:*:*:*:*:*
canon mf753cdw_firmware <= 03.07 cpe:2.3:o:canon:mf753cdw_firmware:*:*:*:*:*:*:*:*
canon mf751cdw_firmware <= 03.07 cpe:2.3:o:canon:mf751cdw_firmware:*:*:*:*:*:*:*:*
canon lbp674c_firmware <= 03.07 cpe:2.3:o:canon:lbp674c_firmware:*:*:*:*:*:*:*:*
canon lbp672c_firmware <= 03.07 cpe:2.3:o:canon:lbp672c_firmware:*:*:*:*:*:*:*:*
canon lbp671c_firmware <= 03.07 cpe:2.3:o:canon:lbp671c_firmware:*:*:*:*:*:*:*:*
canon mf1238_ii_firmware <= 03.07 cpe:2.3:o:canon:mf1238_ii_firmware:*:*:*:*:*:*:*:*
canon mf1333c_firmware <= 03.07 cpe:2.3:o:canon:mf1333c_firmware:*:*:*:*:*:*:*:*
canon mf1643i_ii_firmware <= 03.07 cpe:2.3:o:canon:mf1643i_ii_firmware:*:*:*:*:*:*:*:*
canon mf1643if_ii_firmware <= 03.07 cpe:2.3:o:canon:mf1643if_ii_firmware:*:*:*:*:*:*:*:*
canon mf275dw_firmware <= 03.07 cpe:2.3:o:canon:mf275dw_firmware:*:*:*:*:*:*:*:*
canon mf273dw_firmware <= 03.07 cpe:2.3:o:canon:mf273dw_firmware:*:*:*:*:*:*:*:*
canon mf272dw_firmware <= 03.07 cpe:2.3:o:canon:mf272dw_firmware:*:*:*:*:*:*:*:*
canon mf455dw_firmware <= 03.07 cpe:2.3:o:canon:mf455dw_firmware:*:*:*:*:*:*:*:*
canon mf453dw_firmware <= 03.07 cpe:2.3:o:canon:mf453dw_firmware:*:*:*:*:*:*:*:*
canon mf452dw_firmware <= 03.07 cpe:2.3:o:canon:mf452dw_firmware:*:*:*:*:*:*:*:*
canon mf451dw_firmware <= 03.07 cpe:2.3:o:canon:mf451dw_firmware:*:*:*:*:*:*:*:*
canon lbp122dw_firmware <= 03.07 cpe:2.3:o:canon:lbp122dw_firmware:*:*:*:*:*:*:*:*
canon lbp1238_ii_firmware <= 03.07 cpe:2.3:o:canon:lbp1238_ii_firmware:*:*:*:*:*:*:*:*
canon lbp1333c_firmware <= 03.07 cpe:2.3:o:canon:lbp1333c_firmware:*:*:*:*:*:*:*:*
canon lbp237dw_firmware <= 03.07 cpe:2.3:o:canon:lbp237dw_firmware:*:*:*:*:*:*:*:*
canon lbp236dw_firmware <= 03.07 cpe:2.3:o:canon:lbp236dw_firmware:*:*:*:*:*:*:*:*
canon lbp674cdw_firmware <= 03.07 cpe:2.3:o:canon:lbp674cdw_firmware:*:*:*:*:*:*:*:*
canon i-sensys_mf754cdw_firmware <= 03.07 cpe:2.3:o:canon:i-sensys_mf754cdw_firmware:*:*:*:*:*:*:*:*
canon i-sensys_x_c1333if_firmware <= 03.07 cpe:2.3:o:canon:i-sensys_x_c1333if_firmware:*:*:*:*:*:*:*:*
canon i-sensys_lbp673cdw_firmware <= 03.07 cpe:2.3:o:canon:i-sensys_lbp673cdw_firmware:*:*:*:*:*:*:*:*
canon i-sensys_mf752cdw_firmware <= 03.07 cpe:2.3:o:canon:i-sensys_mf752cdw_firmware:*:*:*:*:*:*:*:*
canon i-sensys_x_c1333i_firmware <= 03.07 cpe:2.3:o:canon:i-sensys_x_c1333i_firmware:*:*:*:*:*:*:*:*
canon i-sensys_x_c1333p_firmware <= 03.07 cpe:2.3:o:canon:i-sensys_x_c1333p_firmware:*:*:*:*:*:*:*:*

References for CVE-2023-6231

cvelogic Threat Intelligence