CVE-2026-9261
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 · uneditedUse of weak SSH cryptographic algorithms in Canon EOS Network Setting Tool Version 1.5.0 or earlier
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 confidenceThe Canon EOS Network Setting Tool versions 1.5.0 and earlier implement weak SSH cryptographic algorithms, potentially allowing remote attackers to intercept, manipulate, or decrypt network communications due to the use of deprecated or vulnerable cipher suites, key exchange mechanisms, or authentication methods.
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< 1.5.1CVSS 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
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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 checksWork through these to decide whether this CVE applies to you.
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Check installed Canon EOS Network Setting Tool versionOpen the application and navigate to Help > About, or check the program version via Windows Add/Remove Programs, or look at the executable properties (right-click the .exe file and select Properties > Details).Affected if The version listed is 1.5.0 or any version lower than 1.5.1
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Locate the application executableSearch for files named 'EOS Network Setting Tool' or similar Canon network tool executables (.exe) on the system. Common locations include Program Files or Program Files (x86) folders under Canon or the installation directory.Affected if The executable exists on the system and its version is 1.5.0 or earlier (verify via file properties)
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Confirm SSH feature usageReview the application's network configuration or logs to determine if SSH-based network communication or remote configuration features are enabled or used. This may be visible in connection settings or device discovery options.Affected if SSH functionality is active or configured in the tool's network settings
A user is affected if the Canon EOS Network Setting Tool installed on their system is version 1.5.0 or earlier and SSH network features are in use.
Generated from the published advisory. Verify against your own configuration.
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 · scoped1.5.1
Update Canon EOS Network Setting Tool to a version newer than 1.5.0 when available from Canon. If immediate update is not possible, avoid using the tool on untrusted networks and consider network segmentation to limit exposure.
1.5.1
- 1. Check the current version of Canon EOS Network Setting Tool installed on your system
- 2. Navigate to the official Canon support website (canon.jp, canon-europe.com, or usa.canon.com)
- 3. Download the Canon EOS Network Setting Tool version 1.5.1 or later
- 4. Install the updated version following Canon's installation instructions
- 5. Verify the installed version shows 1.5.1 or higher after installation
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 h
- Implementation1.0 h
- Testing2.0 h
- Review / QA1.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2026-9261 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2026-9261 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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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.
- 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