CVE-2021-36288
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 VNX2 for File version 8.1.21.266 and earlier, contain a path traversal vulnerability which may lead unauthenticated users to read/write restricted files
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 VNX2 for File versions 8.1.21.266 and earlier contain a path traversal vulnerability that allows unauthenticated attackers to read and write files outside the intended directory boundaries, potentially exposing sensitive system files or configuration data.
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<= 8.1.21.266CVSS 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
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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 checksWork through these to decide whether this CVE applies to you.
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Identify the installed Dell productDetermine if the system is running Dell VNX2 for File or Dell EMC Unity Operating Environment by checking the system model and software version through the management interface or system information commandAffected if The product is Dell VNX2 for File or Dell EMC Unity Operating Environment
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Check the installed software versionRetrieve the current software version through the management CLI or GUI, typically found in system information or about sectionsAffected if The version is 8.1.21.266 or any earlier version
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Verify the management interface is network accessibleConfirm that the web-based management interface (typically ports 443 or 80) is reachable from network segmentsAffected if The management interface is exposed to network access (this is required for the unauthenticated attacker to exploit the path traversal)
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Check for evidence of unauthorized file accessReview web server access logs and file system audit logs for unusual patterns such as requests containing '../' sequences or access to system files outside the web rootAffected if Logs show path traversal patterns or unauthorized access to files outside the intended web directory
You are affected if the system runs Dell VNX2 for File or Dell EMC Unity Operating Environment version 8.1.21.266 or earlier AND the management interface is network-accessible to unauthenticated users.
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 the vendor-provided patch for Dell VNX2 for File to address the path traversal vulnerability; if no patch is available, restrict network access to the management interface and implement additional access controls.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA4.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $6,176.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2021-36288 — 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-2021-36288 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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