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CVE-2025-2146· NVD / CVE Program· CNA Canon

Buffer overflow in WebService Authentication processing of Small Office Multifunction Printers and Laser Printers(*) which may allow an atta

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: 0.88% (FIRST EPSS); higher than 58.4% 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 CISA the attack is automatable: targets can be found by mass scanning.
  • 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 WebService Authentication processing of Small 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 MF656Cdw/Satera MF654Cdw/Satera MF551dw/Satera MF457dw firmware v05.07 and earlier sold in Japan. Color imageCLASS MF656Cdw/Color imageCLASS MF654Cdw/Color imageCLASS MF653Cdw/Color imageCLASS MF652Cdw/Color imageCLASS LBP633Cdw/Color imageCLASS LBP632Cdw/imageCLASS MF455dw/imageCLASS MF453dw/imageCLASS MF452dw/imageCLASS MF451dw/imageCLASS LBP237dw/imageCLASS LBP236dw/imageCLASS X MF1238 II/imageCLASS X MF1643i II/imageCLASS X MF1643iF II/imageCLASS X LBP1238 II firmware v05.07 and earlier sold in US. i-SENSYS MF657Cdw/i-SENSYS MF655Cdw/i-SENSYS MF651Cdw/i-SENSYS LBP633Cdw/i-SENSYS LBP631Cdw/i-SENSYS MF553dw/i-SENSYS MF552dw/i-SENSYS MF455dw/i-SENSYS MF453dw/i-SENSYS LBP236dw/i-SENSYS LBP233dw/imageRUNNER 1643iF II/imageRUNNER 1643i II/i-SENSYS X 1238iF II/i-SENSYS X 1238i II/i-SENSYS X 1238P II/i-SENSYS X 1238Pr II firmware v05.07 and earlier sold in Europe.

CriticalCVSS 9.8 · v3.1—No exploit No fix recorded
Published
May 25, 2025
Updated
Jun 17, 2026
EPSS
0.8% · 58th 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 · 0.8%

CISA SSVC decision

Exploitation
none
Automatable
yes
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-2025-2146

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

One daily email digest (06:00 UTC); connect a webhook for KEV listings and weaponized exploits instantly.

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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
canonsatera mf656cdw firmware
canonsatera mf656cdw
canonsatera mf654cdw firmware
canonsatera mf654cdw
canonsatera mf551dw firmware
canonsatera mf551dw
canonsatera mf457dw firmware
canonsatera mf457dw
canonimageclass mf656cdw firmware
canonimageclass mf656cdw
canonimageclass mf654cdw firmware
canonimageclass mf654cdw

and 62 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 lbp233dw firmwareup to 05.07 inclusive
  • canon i-sensys lbp236dw firmwareup to 05.07 inclusive
  • canon i-sensys lbp631cdw firmwareup to 05.07 inclusive
  • canon i-sensys lbp633cdw firmwareup to 05.07 inclusive
  • canon i-sensys mf453dw firmwareup to 05.07 inclusive
  • canon i-sensys mf455dw firmwareup to 05.07 inclusive
  • canon i-sensys mf552dw firmwareup to 05.07 inclusive
  • canon i-sensys mf553dw firmwareup to 05.07 inclusive
  • canon i-sensys mf651cdw firmwareup to 05.07 inclusive
  • canon i-sensys mf655cdw firmwareup to 05.07 inclusive
  • canon i-sensys mf657cdw firmwareup to 05.07 inclusive
  • canon i-sensys x 1238i ii firmwareup to 05.07 inclusive
  • canon i-sensys x 1238if ii firmwareup to 05.07 inclusive
  • canon i-sensys x 1238p ii firmwareup to 05.07 inclusive
  • canon i-sensys x 1238pr ii firmwareup to 05.07 inclusive
  • canon imageclass lbp236dw firmwareup to 05.07 inclusive
  • canon imageclass lbp237dw firmwareup to 05.07 inclusive
  • canon imageclass lbp632cdw firmwareup to 05.07 inclusive
  • canon imageclass lbp633cdw firmwareup to 05.07 inclusive
  • canon imageclass mf451dw firmwareup to 05.07 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. Color imageCLASS LBP632Cdw

    • 05.07 and earlieraffected

  • Canon Inc. Color imageCLASS LBP633Cdw

    • 05.07 and earlieraffected

  • Canon Inc. Color imageCLASS MF652Cdw

    • 05.07 and earlieraffected

  • Canon Inc. Color imageCLASS MF653Cdw

    • 05.07 and earlieraffected

  • Canon Inc. Color imageCLASS MF654Cdw

    • 05.07 and earlieraffected

  • Canon Inc. Color imageCLASS MF656Cdw

    • 05.07 and earlieraffected

  • Canon Inc. i-SENSYS LBP233dw

    • 05.07 and earlieraffected

  • Canon Inc. i-SENSYS LBP236dw

    • 05.07 and earlieraffected

  • Canon Inc. i-SENSYS LBP631Cdw

    • 05.07 and earlieraffected

  • Canon Inc. i-SENSYS LBP633Cdw

    • 05.07 and earlieraffected

  • Canon Inc. i-SENSYS MF453dw

    • 05.07 and earlieraffected

  • Canon Inc. i-SENSYS MF455dw

    • 05.07 and earlieraffected

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.

No nightly-computed relations.

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