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Ij Network ToolApplication · Canon

CVE-2023-1764

MEDIUM · 6.5 CVSS v3.1 Published 2023-05-17
Fix available
A fix is available. Upgrade to after 4.7.5 or later.
See remediation →
70/100
Remediation priority · Elevated
No privileges Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
Canon IJ Network Tool/Ver.4.7.5 and earlier (supported OS: OS X 10.9.5-macOS 13),IJ Network Tool/Ver.4.7.3 and earlier (supported OS: OS X 10.7.5-OS X 10.8) allows an attacker to acquire sensitive information on the Wi-Fi connection setup of the printer from the communication of the software.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · moderate confidence

This is an information disclosure vulnerability in Canon IJ Network Tool where sensitive Wi-Fi connection setup data (including potentially SSIDs, passwords, and security configurations) is exposed during software communication. The vulnerability allows a network-adjacent attacker to intercept and acquire this information, likely due to unencrypted or improperly protected network communication between the software and the printer.

MitigationApply the vendor patch from Canon to update IJ Network Tool to the latest version (beyond 4.7.5 for macOS 10.9.5+ and beyond 4.7.3 for older OS X versions). Until patched, avoid using the software on untrusted networks and ensure printer communications occur over isolated, secure networks.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Ij Network ToolApplication
Affected:<= 4.7.3<= 4.7.5

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Adjacent
Complexity
Low
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

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

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify if Canon IJ Network Tool is installed
    Check your system for the presence of Canon IJ Network Tool application - look in /Applications folder or use system search for 'Canon IJ Network Tool'
    Affected if The software is present on the system and is used for printer configuration
  2. Determine installed version of Canon IJ Network Tool
    Locate the installed application and check its version information - right-click the app, select Get Info, or use the application's built-in About/Help menu to find the version number
    Affected if The installed version is at or below 4.7.3 (for older OS X versions) or at or below 4.7.5 (for macOS 10.9.5 and later)
  3. Assess network environment during printer setup
    Identify whether the computer running Canon IJ Network Tool is connected to a network where untrusted or unauthorized users could be present (such as public Wi-Fi, shared office networks, or unencrypted wireless networks)
    Affected if The software is used on a network where network-adjacent attackers could intercept communications between the computer and printer

You are affected if Canon IJ Network Tool is installed with version 4.7.3 or below (older OS X) or 4.7.5 or below (macOS 10.9.5+) and you use the software on networks where untrusted parties could be network-adjacent.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Upgrade available Upgrade to a release after 4.7.5
Interim mitigation

Apply the vendor patch from Canon to update IJ Network Tool to the latest version (beyond 4.7.5 for macOS 10.9.5+ and beyond 4.7.3 for older OS X versions). Until patched, avoid using the software on untrusted networks and ensure printer communications occur over isolated, secure networks.

Recommended fix Moderate confidence

IJ Network Tool version 4.7.6 or later (for macOS 10.9.5+); IJ Network Tool version 4.7.4 or later (for macOS 10.7.5-10.8)

  1. 1. Visit the official Canon support website or check psirt.canon for the latest version of IJ Network Tool
  2. 2. Download the most recent version of Canon IJ Network Tool compatible with your macOS version
  3. 3. Uninstall the current version of IJ Network Tool from your system
  4. 4. Install the newly downloaded version of IJ Network Tool
  5. 5. Verify the installed version matches the latest available version from Canon
Caveat Ensure the new version supports your specific macOS version before upgrading

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Ij Network Tool Scoped from the published advisory
  • Consultation2.0 h
  • Implementation1.0 h
  • Testing3.0 h
  • Review / QA1.0 h
7.0 hours of engineering $1,210
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2023-1764 in production — separate from our analysis above.

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data