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CVE-2023-6232· NVD / CVE Program· CNA Canon

Buffer overflow in the Address Book username process in authentication of Mobile Device Function of Office Multifunction Printers and Laser

Noroxi assessment

Priority: Monitor (action score 39/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 1.4% (FIRST EPSS); higher than 73% of all records.
  • Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
  • According to the record, no fixed version is available yet.

Low priority for now. Update when a fix is released; follow the vendor's advisory.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

Buffer overflow in the Address Book username process in authentication of Mobile Device Function 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.

CriticalCVSS 9.8 · v3.1—No exploit No fix recorded
Published
Feb 5, 2024
Updated
Jun 17, 2026
EPSS
1.4% · 73th percentile

Report tools

JSON

Action score

39

Monitor

Low priority for now.

CVSS
39 / 40 · 9.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 1.4%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
9.8
CNA · Canon
9.8
agree

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • No fixed version yet

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2023-6232

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
canonmf273dw firmware
canonmf755cdw firmware
canonmf755cdw
canonmf753cdw firmware
canonmf753cdw
canonmf751cdw firmware
canonmf751cdw
canonlbp674c firmware
canonlbp674c
canonlbp672c firmware
canonlbp672c
canonlbp671c firmware

and 46 more

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • canon i-sensys lbp673cdw firmwareup to 03.07 inclusive
  • canon i-sensys mf752cdw firmwareup to 03.07 inclusive
  • canon i-sensys mf754cdw firmwareup to 03.07 inclusive
  • canon i-sensys x c1333i firmwareup to 03.07 inclusive
  • canon i-sensys x c1333if firmwareup to 03.07 inclusive
  • canon i-sensys x c1333p firmwareup to 03.07 inclusive
  • canon lbp122dw firmwareup to 03.07 inclusive
  • canon lbp1238 ii firmwareup to 03.07 inclusive
  • canon lbp1333c firmwareup to 03.07 inclusive
  • canon lbp236dw firmwareup to 03.07 inclusive
  • canon lbp237dw firmwareup to 03.07 inclusive
  • canon lbp671c firmwareup to 03.07 inclusive
  • canon lbp672c firmwareup to 03.07 inclusive
  • canon lbp674c firmwareup to 03.07 inclusive
  • canon lbp674cdw firmwareup to 03.07 inclusive
  • canon mf1238 ii firmwareup to 03.07 inclusive
  • canon mf1333c firmwareup to 03.07 inclusive
  • canon mf1643i ii firmwareup to 03.07 inclusive
  • canon mf1643if ii firmwareup to 03.07 inclusive
  • canon mf272dw firmwareup to 03.07 inclusive

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Canon). Independent of NVD's CPE analysis and usually ahead of it.

  • Canon Inc. C1333i Series

    • 03.07 and earlieraffected

  • Canon Inc. C1333P

    • 03.07 and earlieraffected

  • Canon Inc. Color imageCLASS LBP674C

    • 03.07 and earlieraffected

  • Canon Inc. Color imageCLASS MF750C Series

    • 03.07 and earlieraffected

  • Canon Inc. Color imageCLASS X LBP1333C

    • 03.07 and earlieraffected

  • Canon Inc. Color imageCLASS X MF1333C Series

    • 03.07 and earlieraffected

  • Canon Inc. i-SENSYS LBP673Cdw

    • 03.07 and earlieraffected

  • Canon Inc. i-SENSYS MF750C Series

    • 03.07 and earlieraffected

  • Canon Inc. Satera LBP670C Series

    • 03.07 and earlieraffected

  • Canon Inc. Satera MF750C Series

    • 03.07 and earlieraffected

Same product

canon: all records

Other highest-scoring records for the same primary product.

  • CVE-2023-6234Buffer overflow in CPCA Color LUT Resource Download process of Office Multifunction Printers and Laser Printers(*) which may allow an attack
    39Monitor
  • CVE-2023-6233Buffer overflow in SLP attribute request process of Office Multifunction Printers and Laser Printers(*) which may allow an attacker on the n
    39Monitor
  • CVE-2023-6231Buffer overflow in WSD probe request process of Office Multifunction Printers and Laser Printers(*) which may allow an attacker on the netwo
    39Monitor

Published before and after this one in the same product

  • ← EarlierCVE-2023-6229Feb 5, 2024 · Buffer overflow in CPCA PDL Resource Download process of Office Multifunction Printers and Laser Printers(*) which may allow an attacker on
    39Monitor
  • ← EarlierCVE-2023-6230Feb 5, 2024 · Buffer overflow in the Address Book password process in authentication of Mobile Device Function of Office Multifunction Printers and Laser
    39Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2023-62290 days apartBuffer overflow in CPCA PDL Resource Download process of Office Multifunction Printers and Laser Printers(*) which may allow an attacker on
    39Monitor
  • CVE-2023-62300 days apartBuffer overflow in the Address Book password process in authentication of Mobile Device Function of Office Multifunction Printers and Laser
    39Monitor
  • CVE-2023-62310 days apartBuffer overflow in WSD probe request process of Office Multifunction Printers and Laser Printers(*) which may allow an attacker on the netwo
    39Monitor
  • CVE-2023-62330 days apartBuffer overflow in SLP attribute request process of Office Multifunction Printers and Laser Printers(*) which may allow an attacker on the n
    39Monitor
  • CVE-2023-62340 days apartBuffer overflow in CPCA Color LUT Resource Download process of Office Multifunction Printers and Laser Printers(*) which may allow an attack
    39Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-787 · Out-of-bounds Write

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

Show all references (3 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records