CVE-2022-26838
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 · uneditedPath traversal vulnerability in Importing Mobile Device Data of Cybozu Remote Service 3.1.2 allows a remote authenticated attacker to cause a denial-of-service (DoS) condition.
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 confidencePath traversal vulnerability in the Importing Mobile Device Data feature of Cybozu Remote Service 3.1.2 allows an authenticated remote attacker to manipulate file paths outside the intended directory, potentially causing denial of service through file system manipulation or service disruption.
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= 3.1.2CVSS 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
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/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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Identify Cybozu Remote Service installation and versionLocate the Cybozu Remote Service Manager installation and retrieve the installed version number. This is typically found in the application itself (About/Version information), in the Windows Programs and Features list, or via the service's version metadata.Affected if The installed version is exactly 3.1.2.
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Confirm the Mobile Device Data import feature is in useCheck if the Mobile Device Data import functionality is configured or has been used. This may be visible in the application logs, audit trails, or the feature may be listed as enabled in the administrative console.Affected if The Mobile Device Data import feature is present, enabled, or has activity logs indicating usage.
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Review application and system logs for path traversal indicatorsExamine Cybozu Remote Service logs and system audit logs for patterns indicating path traversal attempts, such as '..' sequences in file paths, access to directories outside the expected import directory, or file manipulation errors around the import functionality.Affected if Logs contain path traversal patterns ('../' or '..\') in import-related requests or unusual file system access outside the designated import directory.
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Inspect the import directory for unexpected files or modificationsLocate the directory configured for mobile device data imports and verify only expected import files are present. Check for any files created outside this intended directory or modifications to system files that could indicate successful path traversal exploitation.Affected if Files exist outside the designated import directory or unexpected modifications are found in proximity to the import functionality.
A user is affected if Cybozu Remote Service Manager version 3.1.2 is installed AND the Mobile Device Data import feature is enabled or has been used, as the path traversal only applies to that specific feature in this exact version.
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.
From vendor dataApply vendor-supplied patch or update to Cybozu Remote Service beyond version 3.1.2; implement strict input validation and canonicalization on all file path parameters in the mobile device data import functionality.
- Consultation3.0 h
- Implementation6.0 h
- Testing3.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,984.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2022-26838 — 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-2022-26838 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
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