Hyperflex Hx Data PlatformOperating system · Cisco
CVE-2021-1498
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 · uneditedMultiple vulnerabilities in the web-based management interface of Cisco HyperFlex HX could allow an unauthenticated, remote attacker to perform command injection attacks against an affected device. For more information about these vulnerabilities, see the Details section of this advisory.
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 confidenceMultiple command injection vulnerabilities exist in the web-based management interface of Cisco HyperFlex HX. An unauthenticated, remote attacker can exploit these vulnerabilities to execute arbitrary commands on the underlying operating system with elevated privileges.
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
Hyperflex Hx Data PlatformOperating system
< 4.0\(2e\)>= 4.5, < 4.5\(2a\)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
- 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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Identify Cisco HyperFlex HX installationLocate any Cisco HyperFlex HX cluster or node in your environment by checking for HyperFlex-related hostnames, IP addresses, or documented infrastructureAffected if The system is not a Cisco HyperFlex HX installation, then this CVE does not apply
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Determine HyperFlex HX Data Platform versionAccess the HyperFlex cluster via SSH and retrieve the installed Data Platform version using the appropriate HyperFlex CLI tool or commandAffected if The installed version falls in the vulnerable ranges: before 4.0(2e), or between 4.5.0 and 4.5(2a) exclusive
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Verify web-based management interface statusConfirm whether the HyperFlex web-based management interface is enabled and accessible on the affected systemAffected if The web management interface is enabled and network-accessible (even internally)
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Check network exposure of management interfaceReview network configuration, firewall rules, or access controls to determine if the HyperFlex management interface is reachable from network segmentsAffected if The management interface is reachable from any network beyond isolated management-only segments
The environment is affected if it runs a Cisco HyperFlex HX Data Platform version before 4.0(2e) or between 4.5.0 and 4.5(2a), and the web-based management interface is network-accessible.
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 data4.04.5
Apply the vendor-supplied patches or firmware updates for Cisco HyperFlex HX as specified in the Cisco security advisory. If patching is immediately unavailable, restrict network access to the management interface using network segmentation and ACLs.
Fix this in Hyperflex Hx Data Platform
Exploited in the wild — priority engagement
- Consultation4.0 h
- Implementation8.0 h
- Testing4.0 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 $5,120.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2021-1498 — 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-2021-1498 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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