CVE-2022-26855
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 · uneditedDell PowerScale OneFS, versions 8.2.x-9.3.0.x, contains an incorrect default permissions vulnerability. A local malicious user could potentially exploit this vulnerability, leading to a denial of service.
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 confidenceDell PowerScale OneFS contains an incorrect default permissions vulnerability where a local malicious user can exploit improper permission settings to cause a denial of service. The vulnerability exists in versions 8.2.x through 9.3.0.x and requires local access to the system.
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>= 8.2.0, <= 9.3.0.0CVSS 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
- Local
- Complexity
- Low
- Privileges
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
CVSS:3.1/AV:L/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 PowerScale OneFS version via CLIRun `isi version` or `isi status` command on the OneFS command lineAffected if Version output is 8.2.0.x through 9.3.0.0 (including all 8.2.x and 9.x versions up to 9.3.0.0)
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Confirm version from web UILog into OneFS web interface, navigate to System > Management > Overview and note the OneFS version displayedAffected if Displayed version falls within 8.2.0 through 9.3.0.0 range
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Check if default permissions have been hardenedReview Dell hardening guide and verify that default file and service permissions have been reviewed and corrected from out-of-box settingsAffected if System remains at default permission configuration (not hardened per vendor guidance) while running an affected version
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Verify local user access scopeDetermine whether untrusted local users have shell or console access to the OneFS systemAffected if Local untrusted users have shell or console access on an affected version with default permissions
Environment is affected if running Dell PowerScale OneFS versions 8.2.0 through 9.3.0.0 with default permission settings and local user access is available to untrusted accounts.
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 · scopedApply the vendor-provided patch or upgrade to a version beyond 9.3.0.x. Review and correct default file and service permissions according to Dell hardening guides.
OneFS 9.4.0 or later (any version beyond 9.3.0.0)
- 1. Identify the current Dell PowerScale OneFS version by running 'isi version' or checking the web administration console.
- 2. Schedule a maintenance window for the upgrade, ensuring adequate backup of critical data.
- 3. Download the latest Dell PowerScale OneFS upgrade package from the Dell Support website (www.dell.com/support).
- 4. Follow Dell's official upgrade instructions for OneFS, typically using 'isi upgrade' command or the web UI.
- 5. After upgrade, verify the system is operational and confirm the new version is installed with 'isi version'.
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA4.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2022-26855 — 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-2022-26855 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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- 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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